Home / 5,680.73-8,521.52-1,520.64

Finding the Fourth Proportional to 5,680.73, 8,521.52 and 1,520.64

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Solution

The fourth proportional to 5,680.73, 8,521.52 and 1,520.64 is: 2,281.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.73 : 8,521.52 = 1,520.64 : x
  2. Step 2: Convert to fraction form
    5,680.73/8,521.52 = 1,520.64/x
  3. Step 3: Cross multiply
    5,680.73x = 8,521.52 × 1,520.64
  4. Step 4: Simplify right side
    5,680.73x = 12,958,156.57
  5. Step 5: Solve for x
    x = 12,958,156.57/5,680.73
  6. Step 6: Final answer
    x = 2,281.07

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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.