Home / 5,478.28-7,566.16-3,706.81

Finding the Fourth Proportional to 5,478.28, 7,566.16 and 3,706.81

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Solution

The fourth proportional to 5,478.28, 7,566.16 and 3,706.81 is: 5,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.28 : 7,566.16 = 3,706.81 : x
  2. Step 2: Convert to fraction form
    5,478.28/7,566.16 = 3,706.81/x
  3. Step 3: Cross multiply
    5,478.28x = 7,566.16 × 3,706.81
  4. Step 4: Simplify right side
    5,478.28x = 28,046,338.88
  5. Step 5: Solve for x
    x = 28,046,338.88/5,478.28
  6. Step 6: Final answer
    x = 5,119.55

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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.