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Finding the Fourth Proportional to 5,157.19, 7,734.81 and 1,458.53

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Solution

The fourth proportional to 5,157.19, 7,734.81 and 1,458.53 is: 2,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.19 : 7,734.81 = 1,458.53 : x
  2. Step 2: Convert to fraction form
    5,157.19/7,734.81 = 1,458.53/x
  3. Step 3: Cross multiply
    5,157.19x = 7,734.81 × 1,458.53
  4. Step 4: Simplify right side
    5,157.19x = 11,281,445.14
  5. Step 5: Solve for x
    x = 11,281,445.14/5,157.19
  6. Step 6: Final answer
    x = 2,187.52

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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.