Home / 3,713.60-5,124.13-2,221.45

Finding the Fourth Proportional to 3,713.60, 5,124.13 and 2,221.45

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Solution

The fourth proportional to 3,713.60, 5,124.13 and 2,221.45 is: 3,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.60 : 5,124.13 = 2,221.45 : x
  2. Step 2: Convert to fraction form
    3,713.60/5,124.13 = 2,221.45/x
  3. Step 3: Cross multiply
    3,713.60x = 5,124.13 × 2,221.45
  4. Step 4: Simplify right side
    3,713.60x = 11,382,980.22
  5. Step 5: Solve for x
    x = 11,382,980.22/3,713.60
  6. Step 6: Final answer
    x = 3,065.21

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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.