Home / 3,888.16-5,365.28-2,711.76

Finding the Fourth Proportional to 3,888.16, 5,365.28 and 2,711.76

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Solution

The fourth proportional to 3,888.16, 5,365.28 and 2,711.76 is: 3,741.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.16 : 5,365.28 = 2,711.76 : x
  2. Step 2: Convert to fraction form
    3,888.16/5,365.28 = 2,711.76/x
  3. Step 3: Cross multiply
    3,888.16x = 5,365.28 × 2,711.76
  4. Step 4: Simplify right side
    3,888.16x = 14,549,351.69
  5. Step 5: Solve for x
    x = 14,549,351.69/3,888.16
  6. Step 6: Final answer
    x = 3,741.96

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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.