Home / 2,220.08-3,063.74-1,225.35

Finding the Fourth Proportional to 2,220.08, 3,063.74 and 1,225.35

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Solution

The fourth proportional to 2,220.08, 3,063.74 and 1,225.35 is: 1,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.08 : 3,063.74 = 1,225.35 : x
  2. Step 2: Convert to fraction form
    2,220.08/3,063.74 = 1,225.35/x
  3. Step 3: Cross multiply
    2,220.08x = 3,063.74 × 1,225.35
  4. Step 4: Simplify right side
    2,220.08x = 3,754,147.68
  5. Step 5: Solve for x
    x = 3,754,147.68/2,220.08
  6. Step 6: Final answer
    x = 1,691.00

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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.