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Finding the Fourth Proportional to 3,061.72, 4,592.38 and 870.27

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Solution

The fourth proportional to 3,061.72, 4,592.38 and 870.27 is: 1,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.72 : 4,592.38 = 870.27 : x
  2. Step 2: Convert to fraction form
    3,061.72/4,592.38 = 870.27/x
  3. Step 3: Cross multiply
    3,061.72x = 4,592.38 × 870.27
  4. Step 4: Simplify right side
    3,061.72x = 3,996,610.54
  5. Step 5: Solve for x
    x = 3,996,610.54/3,061.72
  6. Step 6: Final answer
    x = 1,305.35

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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.