Home / 5,087.50-7,020.40-2,849.32

Finding the Fourth Proportional to 5,087.50, 7,020.40 and 2,849.32

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Solution

The fourth proportional to 5,087.50, 7,020.40 and 2,849.32 is: 3,931.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.50 : 7,020.40 = 2,849.32 : x
  2. Step 2: Convert to fraction form
    5,087.50/7,020.40 = 2,849.32/x
  3. Step 3: Cross multiply
    5,087.50x = 7,020.40 × 2,849.32
  4. Step 4: Simplify right side
    5,087.50x = 20,003,366.13
  5. Step 5: Solve for x
    x = 20,003,366.13/5,087.50
  6. Step 6: Final answer
    x = 3,931.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.