Home / 5,240.64-7,230.90-3,117.74

Finding the Fourth Proportional to 5,240.64, 7,230.90 and 3,117.74

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Solution

The fourth proportional to 5,240.64, 7,230.90 and 3,117.74 is: 4,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.64 : 7,230.90 = 3,117.74 : x
  2. Step 2: Convert to fraction form
    5,240.64/7,230.90 = 3,117.74/x
  3. Step 3: Cross multiply
    5,240.64x = 7,230.90 × 3,117.74
  4. Step 4: Simplify right side
    5,240.64x = 22,544,066.17
  5. Step 5: Solve for x
    x = 22,544,066.17/5,240.64
  6. Step 6: Final answer
    x = 4,301.78

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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.