Home / 5,188.02-7,781.64-1,292.42

Finding the Fourth Proportional to 5,188.02, 7,781.64 and 1,292.42

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Solution

The fourth proportional to 5,188.02, 7,781.64 and 1,292.42 is: 1,938.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.02 : 7,781.64 = 1,292.42 : x
  2. Step 2: Convert to fraction form
    5,188.02/7,781.64 = 1,292.42/x
  3. Step 3: Cross multiply
    5,188.02x = 7,781.64 × 1,292.42
  4. Step 4: Simplify right side
    5,188.02x = 10,057,147.17
  5. Step 5: Solve for x
    x = 10,057,147.17/5,188.02
  6. Step 6: Final answer
    x = 1,938.53

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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.