Home / 5,237.79-7,851.90-4,781.25

Finding the Fourth Proportional to 5,237.79, 7,851.90 and 4,781.25

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Solution

The fourth proportional to 5,237.79, 7,851.90 and 4,781.25 is: 7,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.79 : 7,851.90 = 4,781.25 : x
  2. Step 2: Convert to fraction form
    5,237.79/7,851.90 = 4,781.25/x
  3. Step 3: Cross multiply
    5,237.79x = 7,851.90 × 4,781.25
  4. Step 4: Simplify right side
    5,237.79x = 37,541,916.72
  5. Step 5: Solve for x
    x = 37,541,916.72/5,237.79
  6. Step 6: Final answer
    x = 7,167.51

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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.