Home / 3,988.16-5,501.92-2,662.08

Finding the Fourth Proportional to 3,988.16, 5,501.92 and 2,662.08

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Solution

The fourth proportional to 3,988.16, 5,501.92 and 2,662.08 is: 3,672.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.16 : 5,501.92 = 2,662.08 : x
  2. Step 2: Convert to fraction form
    3,988.16/5,501.92 = 2,662.08/x
  3. Step 3: Cross multiply
    3,988.16x = 5,501.92 × 2,662.08
  4. Step 4: Simplify right side
    3,988.16x = 14,646,551.19
  5. Step 5: Solve for x
    x = 14,646,551.19/3,988.16
  6. Step 6: Final answer
    x = 3,672.51

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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.