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Finding the Fourth Proportional to 3,062.56, 4,593.18 and 870.70

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Solution

The fourth proportional to 3,062.56, 4,593.18 and 870.70 is: 1,305.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,062.56 : 4,593.18 = 870.70 : x
  2. Step 2: Convert to fraction form
    3,062.56/4,593.18 = 870.70/x
  3. Step 3: Cross multiply
    3,062.56x = 4,593.18 × 870.70
  4. Step 4: Simplify right side
    3,062.56x = 3,999,281.83
  5. Step 5: Solve for x
    x = 3,999,281.83/3,062.56
  6. Step 6: Final answer
    x = 1,305.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.