Home / 1,655.28-2,281.29-1,607.90

Finding the Fourth Proportional to 1,655.28, 2,281.29 and 1,607.90

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Solution

The fourth proportional to 1,655.28, 2,281.29 and 1,607.90 is: 2,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.28 : 2,281.29 = 1,607.90 : x
  2. Step 2: Convert to fraction form
    1,655.28/2,281.29 = 1,607.90/x
  3. Step 3: Cross multiply
    1,655.28x = 2,281.29 × 1,607.90
  4. Step 4: Simplify right side
    1,655.28x = 3,668,074.78
  5. Step 5: Solve for x
    x = 3,668,074.78/1,655.28
  6. Step 6: Final answer
    x = 2,215.98

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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.