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Finding the Fourth Proportional to 5,657.76, 8,490 and 2,370.60

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Solution

The fourth proportional to 5,657.76, 8,490 and 2,370.60 is: 3,557.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,657.76 : 8,490 = 2,370.60 : x
  2. Step 2: Convert to fraction form
    5,657.76/8,490 = 2,370.60/x
  3. Step 3: Cross multiply
    5,657.76x = 8,490 × 2,370.60
  4. Step 4: Simplify right side
    5,657.76x = 20,126,394
  5. Step 5: Solve for x
    x = 20,126,394/5,657.76
  6. Step 6: Final answer
    x = 3,557.31

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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.