Home / 5,097.90-7,035.60-2,859.78

Finding the Fourth Proportional to 5,097.90, 7,035.60 and 2,859.78

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Solution

The fourth proportional to 5,097.90, 7,035.60 and 2,859.78 is: 3,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.90 : 7,035.60 = 2,859.78 : x
  2. Step 2: Convert to fraction form
    5,097.90/7,035.60 = 2,859.78/x
  3. Step 3: Cross multiply
    5,097.90x = 7,035.60 × 2,859.78
  4. Step 4: Simplify right side
    5,097.90x = 20,120,268.17
  5. Step 5: Solve for x
    x = 20,120,268.17/5,097.90
  6. Step 6: Final answer
    x = 3,946.78

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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.