Home / 5,680.87-8,521.40-1,732.21

Finding the Fourth Proportional to 5,680.87, 8,521.40 and 1,732.21

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Solution

The fourth proportional to 5,680.87, 8,521.40 and 1,732.21 is: 2,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.87 : 8,521.40 = 1,732.21 : x
  2. Step 2: Convert to fraction form
    5,680.87/8,521.40 = 1,732.21/x
  3. Step 3: Cross multiply
    5,680.87x = 8,521.40 × 1,732.21
  4. Step 4: Simplify right side
    5,680.87x = 14,760,854.29
  5. Step 5: Solve for x
    x = 14,760,854.29/5,680.87
  6. Step 6: Final answer
    x = 2,598.34

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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.