Home / 1,156.64-1,731.84-607.68

Finding the Fourth Proportional to 1,156.64, 1,731.84 and 607.68

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Solution

The fourth proportional to 1,156.64, 1,731.84 and 607.68 is: 909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.64 : 1,731.84 = 607.68 : x
  2. Step 2: Convert to fraction form
    1,156.64/1,731.84 = 607.68/x
  3. Step 3: Cross multiply
    1,156.64x = 1,731.84 × 607.68
  4. Step 4: Simplify right side
    1,156.64x = 1,052,404.53
  5. Step 5: Solve for x
    x = 1,052,404.53/1,156.64
  6. Step 6: Final answer
    x = 909.88

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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.