Home / 5,250.15-7,869.65-2,782.44

Finding the Fourth Proportional to 5,250.15, 7,869.65 and 2,782.44

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Solution

The fourth proportional to 5,250.15, 7,869.65 and 2,782.44 is: 4,170.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.15 : 7,869.65 = 2,782.44 : x
  2. Step 2: Convert to fraction form
    5,250.15/7,869.65 = 2,782.44/x
  3. Step 3: Cross multiply
    5,250.15x = 7,869.65 × 2,782.44
  4. Step 4: Simplify right side
    5,250.15x = 21,896,815.03
  5. Step 5: Solve for x
    x = 21,896,815.03/5,250.15
  6. Step 6: Final answer
    x = 4,170.70

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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.