Home / 1,476.24-2,215.08-655.20

Finding the Fourth Proportional to 1,476.24, 2,215.08 and 655.20

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Solution

The fourth proportional to 1,476.24, 2,215.08 and 655.20 is: 983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.24 : 2,215.08 = 655.20 : x
  2. Step 2: Convert to fraction form
    1,476.24/2,215.08 = 655.20/x
  3. Step 3: Cross multiply
    1,476.24x = 2,215.08 × 655.20
  4. Step 4: Simplify right side
    1,476.24x = 1,451,320.42
  5. Step 5: Solve for x
    x = 1,451,320.42/1,476.24
  6. Step 6: Final answer
    x = 983.12

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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.