Home / 5,123.20-7,684.80-2,047.36

Finding the Fourth Proportional to 5,123.20, 7,684.80 and 2,047.36

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Solution

The fourth proportional to 5,123.20, 7,684.80 and 2,047.36 is: 3,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.20 : 7,684.80 = 2,047.36 : x
  2. Step 2: Convert to fraction form
    5,123.20/7,684.80 = 2,047.36/x
  3. Step 3: Cross multiply
    5,123.20x = 7,684.80 × 2,047.36
  4. Step 4: Simplify right side
    5,123.20x = 15,733,552.13
  5. Step 5: Solve for x
    x = 15,733,552.13/5,123.20
  6. Step 6: Final answer
    x = 3,071.04

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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.