Home / 5,280.53-7,920.74-1,582.79

Finding the Fourth Proportional to 5,280.53, 7,920.74 and 1,582.79

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Solution

The fourth proportional to 5,280.53, 7,920.74 and 1,582.79 is: 2,374.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.53 : 7,920.74 = 1,582.79 : x
  2. Step 2: Convert to fraction form
    5,280.53/7,920.74 = 1,582.79/x
  3. Step 3: Cross multiply
    5,280.53x = 7,920.74 × 1,582.79
  4. Step 4: Simplify right side
    5,280.53x = 12,536,868.06
  5. Step 5: Solve for x
    x = 12,536,868.06/5,280.53
  6. Step 6: Final answer
    x = 2,374.17

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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.