Home / 2,225.18-3,335.49-1,126.21

Finding the Fourth Proportional to 2,225.18, 3,335.49 and 1,126.21

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Solution

The fourth proportional to 2,225.18, 3,335.49 and 1,126.21 is: 1,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.18 : 3,335.49 = 1,126.21 : x
  2. Step 2: Convert to fraction form
    2,225.18/3,335.49 = 1,126.21/x
  3. Step 3: Cross multiply
    2,225.18x = 3,335.49 × 1,126.21
  4. Step 4: Simplify right side
    2,225.18x = 3,756,462.19
  5. Step 5: Solve for x
    x = 3,756,462.19/2,225.18
  6. Step 6: Final answer
    x = 1,688.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.