Home / 5,184.47-7,778.97-2,718.70

Finding the Fourth Proportional to 5,184.47, 7,778.97 and 2,718.70

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Solution

The fourth proportional to 5,184.47, 7,778.97 and 2,718.70 is: 4,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.47 : 7,778.97 = 2,718.70 : x
  2. Step 2: Convert to fraction form
    5,184.47/7,778.97 = 2,718.70/x
  3. Step 3: Cross multiply
    5,184.47x = 7,778.97 × 2,718.70
  4. Step 4: Simplify right side
    5,184.47x = 21,148,666.29
  5. Step 5: Solve for x
    x = 21,148,666.29/5,184.47
  6. Step 6: Final answer
    x = 4,079.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.