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Finding the Fourth Proportional to 7,030.52, 10,540.88 and 4,257.88

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Solution

The fourth proportional to 7,030.52, 10,540.88 and 4,257.88 is: 6,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.52 : 10,540.88 = 4,257.88 : x
  2. Step 2: Convert to fraction form
    7,030.52/10,540.88 = 4,257.88/x
  3. Step 3: Cross multiply
    7,030.52x = 10,540.88 × 4,257.88
  4. Step 4: Simplify right side
    7,030.52x = 44,881,802.13
  5. Step 5: Solve for x
    x = 44,881,802.13/7,030.52
  6. Step 6: Final answer
    x = 6,383.85

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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.