Home / 7,331.52-10,116.90-4,145.09

Finding the Fourth Proportional to 7,331.52, 10,116.90 and 4,145.09

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Solution

The fourth proportional to 7,331.52, 10,116.90 and 4,145.09 is: 5,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.52 : 10,116.90 = 4,145.09 : x
  2. Step 2: Convert to fraction form
    7,331.52/10,116.90 = 4,145.09/x
  3. Step 3: Cross multiply
    7,331.52x = 10,116.90 × 4,145.09
  4. Step 4: Simplify right side
    7,331.52x = 41,935,486.31
  5. Step 5: Solve for x
    x = 41,935,486.31/7,331.52
  6. Step 6: Final answer
    x = 5,719.89

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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.