Home / 3,988.14-5,502.60-2,415.92

Finding the Fourth Proportional to 3,988.14, 5,502.60 and 2,415.92

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Solution

The fourth proportional to 3,988.14, 5,502.60 and 2,415.92 is: 3,333.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.14 : 5,502.60 = 2,415.92 : x
  2. Step 2: Convert to fraction form
    3,988.14/5,502.60 = 2,415.92/x
  3. Step 3: Cross multiply
    3,988.14x = 5,502.60 × 2,415.92
  4. Step 4: Simplify right side
    3,988.14x = 13,293,841.39
  5. Step 5: Solve for x
    x = 13,293,841.39/3,988.14
  6. Step 6: Final answer
    x = 3,333.34

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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.