Home / 5,280.50-7,922.64-1,818.02

Finding the Fourth Proportional to 5,280.50, 7,922.64 and 1,818.02

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Solution

The fourth proportional to 5,280.50, 7,922.64 and 1,818.02 is: 2,727.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.50 : 7,922.64 = 1,818.02 : x
  2. Step 2: Convert to fraction form
    5,280.50/7,922.64 = 1,818.02/x
  3. Step 3: Cross multiply
    5,280.50x = 7,922.64 × 1,818.02
  4. Step 4: Simplify right side
    5,280.50x = 14,403,517.97
  5. Step 5: Solve for x
    x = 14,403,517.97/5,280.50
  6. Step 6: Final answer
    x = 2,727.68

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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.