Home / 5,087.21-7,020.17-2,849.18

Finding the Fourth Proportional to 5,087.21, 7,020.17 and 2,849.18

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Solution

The fourth proportional to 5,087.21, 7,020.17 and 2,849.18 is: 3,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.21 : 7,020.17 = 2,849.18 : x
  2. Step 2: Convert to fraction form
    5,087.21/7,020.17 = 2,849.18/x
  3. Step 3: Cross multiply
    5,087.21x = 7,020.17 × 2,849.18
  4. Step 4: Simplify right side
    5,087.21x = 20,001,689.30
  5. Step 5: Solve for x
    x = 20,001,689.30/5,087.21
  6. Step 6: Final answer
    x = 3,931.76

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1.5x scale

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.