Home / 5,255.85-7,252.78-3,490.65

Finding the Fourth Proportional to 5,255.85, 7,252.78 and 3,490.65

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Solution

The fourth proportional to 5,255.85, 7,252.78 and 3,490.65 is: 4,816.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.85 : 7,252.78 = 3,490.65 : x
  2. Step 2: Convert to fraction form
    5,255.85/7,252.78 = 3,490.65/x
  3. Step 3: Cross multiply
    5,255.85x = 7,252.78 × 3,490.65
  4. Step 4: Simplify right side
    5,255.85x = 25,316,916.51
  5. Step 5: Solve for x
    x = 25,316,916.51/5,255.85
  6. Step 6: Final answer
    x = 4,816.90

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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.