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Finding the Fourth Proportional to 6,702.87, 9,250.38 and 3,870.76

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Solution

The fourth proportional to 6,702.87, 9,250.38 and 3,870.76 is: 5,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,702.87 : 9,250.38 = 3,870.76 : x
  2. Step 2: Convert to fraction form
    6,702.87/9,250.38 = 3,870.76/x
  3. Step 3: Cross multiply
    6,702.87x = 9,250.38 × 3,870.76
  4. Step 4: Simplify right side
    6,702.87x = 35,806,000.89
  5. Step 5: Solve for x
    x = 35,806,000.89/6,702.87
  6. Step 6: Final answer
    x = 5,341.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.