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Finding the Fourth Proportional to 4,702.76, 6,489.86 and 2,578.24

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Solution

The fourth proportional to 4,702.76, 6,489.86 and 2,578.24 is: 3,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.76 : 6,489.86 = 2,578.24 : x
  2. Step 2: Convert to fraction form
    4,702.76/6,489.86 = 2,578.24/x
  3. Step 3: Cross multiply
    4,702.76x = 6,489.86 × 2,578.24
  4. Step 4: Simplify right side
    4,702.76x = 16,732,416.65
  5. Step 5: Solve for x
    x = 16,732,416.65/4,702.76
  6. Step 6: Final answer
    x = 3,558.00

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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.