Home / 3,903.74-5,387.15-2,225.15

Finding the Fourth Proportional to 3,903.74, 5,387.15 and 2,225.15

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Solution

The fourth proportional to 3,903.74, 5,387.15 and 2,225.15 is: 3,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.74 : 5,387.15 = 2,225.15 : x
  2. Step 2: Convert to fraction form
    3,903.74/5,387.15 = 2,225.15/x
  3. Step 3: Cross multiply
    3,903.74x = 5,387.15 × 2,225.15
  4. Step 4: Simplify right side
    3,903.74x = 11,987,195.45
  5. Step 5: Solve for x
    x = 11,987,195.45/3,903.74
  6. Step 6: Final answer
    x = 3,070.70

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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.