Home / 5,257.29-7,255.40-2,899.65

Finding the Fourth Proportional to 5,257.29, 7,255.40 and 2,899.65

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Solution

The fourth proportional to 5,257.29, 7,255.40 and 2,899.65 is: 4,001.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.29 : 7,255.40 = 2,899.65 : x
  2. Step 2: Convert to fraction form
    5,257.29/7,255.40 = 2,899.65/x
  3. Step 3: Cross multiply
    5,257.29x = 7,255.40 × 2,899.65
  4. Step 4: Simplify right side
    5,257.29x = 21,038,120.61
  5. Step 5: Solve for x
    x = 21,038,120.61/5,257.29
  6. Step 6: Final answer
    x = 4,001.70

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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.