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Finding the Fourth Proportional to 2,566.70, 3,850.05 and 618.91

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Solution

The fourth proportional to 2,566.70, 3,850.05 and 618.91 is: 928.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.70 : 3,850.05 = 618.91 : x
  2. Step 2: Convert to fraction form
    2,566.70/3,850.05 = 618.91/x
  3. Step 3: Cross multiply
    2,566.70x = 3,850.05 × 618.91
  4. Step 4: Simplify right side
    2,566.70x = 2,382,815.20
  5. Step 5: Solve for x
    x = 2,382,815.20/2,566.70
  6. Step 6: Final answer
    x = 928.36

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1.5x scale

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.