Home / 5,280.44-7,920.68-1,582.69

Finding the Fourth Proportional to 5,280.44, 7,920.68 and 1,582.69

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Solution

The fourth proportional to 5,280.44, 7,920.68 and 1,582.69 is: 2,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.44 : 7,920.68 = 1,582.69 : x
  2. Step 2: Convert to fraction form
    5,280.44/7,920.68 = 1,582.69/x
  3. Step 3: Cross multiply
    5,280.44x = 7,920.68 × 1,582.69
  4. Step 4: Simplify right side
    5,280.44x = 12,535,981.03
  5. Step 5: Solve for x
    x = 12,535,981.03/5,280.44
  6. Step 6: Final answer
    x = 2,374.04

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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.