Home / 4,591.78-6,887.68-1,129.02

Finding the Fourth Proportional to 4,591.78, 6,887.68 and 1,129.02

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Solution

The fourth proportional to 4,591.78, 6,887.68 and 1,129.02 is: 1,693.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591.78 : 6,887.68 = 1,129.02 : x
  2. Step 2: Convert to fraction form
    4,591.78/6,887.68 = 1,129.02/x
  3. Step 3: Cross multiply
    4,591.78x = 6,887.68 × 1,129.02
  4. Step 4: Simplify right side
    4,591.78x = 7,776,328.47
  5. Step 5: Solve for x
    x = 7,776,328.47/4,591.78
  6. Step 6: Final answer
    x = 1,693.53

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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.