Home / 5,278.02-7,920.53-2,814.62

Finding the Fourth Proportional to 5,278.02, 7,920.53 and 2,814.62

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Solution

The fourth proportional to 5,278.02, 7,920.53 and 2,814.62 is: 4,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.02 : 7,920.53 = 2,814.62 : x
  2. Step 2: Convert to fraction form
    5,278.02/7,920.53 = 2,814.62/x
  3. Step 3: Cross multiply
    5,278.02x = 7,920.53 × 2,814.62
  4. Step 4: Simplify right side
    5,278.02x = 22,293,228.47
  5. Step 5: Solve for x
    x = 22,293,228.47/5,278.02
  6. Step 6: Final answer
    x = 4,223.79

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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.