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Finding the Fourth Proportional to 3,335.52, 5,000.52 and 1,389.12

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Solution

The fourth proportional to 3,335.52, 5,000.52 and 1,389.12 is: 2,082.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.52 : 5,000.52 = 1,389.12 : x
  2. Step 2: Convert to fraction form
    3,335.52/5,000.52 = 1,389.12/x
  3. Step 3: Cross multiply
    3,335.52x = 5,000.52 × 1,389.12
  4. Step 4: Simplify right side
    3,335.52x = 6,946,322.34
  5. Step 5: Solve for x
    x = 6,946,322.34/3,335.52
  6. Step 6: Final answer
    x = 2,082.53

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1.5x scale

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.