Home / 2,218.91-3,061.77-1,224.23

Finding the Fourth Proportional to 2,218.91, 3,061.77 and 1,224.23

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Solution

The fourth proportional to 2,218.91, 3,061.77 and 1,224.23 is: 1,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.91 : 3,061.77 = 1,224.23 : x
  2. Step 2: Convert to fraction form
    2,218.91/3,061.77 = 1,224.23/x
  3. Step 3: Cross multiply
    2,218.91x = 3,061.77 × 1,224.23
  4. Step 4: Simplify right side
    2,218.91x = 3,748,295.38
  5. Step 5: Solve for x
    x = 3,748,295.38/2,218.91
  6. Step 6: Final answer
    x = 1,689.25

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,219.91, 3,063.15 and 1,225.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.