Home / 5,281.92-7,924.80-2,685.12

Finding the Fourth Proportional to 5,281.92, 7,924.80 and 2,685.12

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Solution

The fourth proportional to 5,281.92, 7,924.80 and 2,685.12 is: 4,028.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.92 : 7,924.80 = 2,685.12 : x
  2. Step 2: Convert to fraction form
    5,281.92/7,924.80 = 2,685.12/x
  3. Step 3: Cross multiply
    5,281.92x = 7,924.80 × 2,685.12
  4. Step 4: Simplify right side
    5,281.92x = 21,279,038.98
  5. Step 5: Solve for x
    x = 21,279,038.98/5,281.92
  6. Step 6: Final answer
    x = 4,028.66

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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.