Home / 1,655.30-2,280.66-1,553.24

Finding the Fourth Proportional to 1,655.30, 2,280.66 and 1,553.24

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Solution

The fourth proportional to 1,655.30, 2,280.66 and 1,553.24 is: 2,140.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.30 : 2,280.66 = 1,553.24 : x
  2. Step 2: Convert to fraction form
    1,655.30/2,280.66 = 1,553.24/x
  3. Step 3: Cross multiply
    1,655.30x = 2,280.66 × 1,553.24
  4. Step 4: Simplify right side
    1,655.30x = 3,542,412.34
  5. Step 5: Solve for x
    x = 3,542,412.34/1,655.30
  6. Step 6: Final answer
    x = 2,140.04

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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.