Home / 5,376.16-8,069.10-2,780.92

Finding the Fourth Proportional to 5,376.16, 8,069.10 and 2,780.92

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Solution

The fourth proportional to 5,376.16, 8,069.10 and 2,780.92 is: 4,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.16 : 8,069.10 = 2,780.92 : x
  2. Step 2: Convert to fraction form
    5,376.16/8,069.10 = 2,780.92/x
  3. Step 3: Cross multiply
    5,376.16x = 8,069.10 × 2,780.92
  4. Step 4: Simplify right side
    5,376.16x = 22,439,521.57
  5. Step 5: Solve for x
    x = 22,439,521.57/5,376.16
  6. Step 6: Final answer
    x = 4,173.89

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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.