Home / 5,087.31-7,019.66-2,849.18

Finding the Fourth Proportional to 5,087.31, 7,019.66 and 2,849.18

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Solution

The fourth proportional to 5,087.31, 7,019.66 and 2,849.18 is: 3,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.31 : 7,019.66 = 2,849.18 : x
  2. Step 2: Convert to fraction form
    5,087.31/7,019.66 = 2,849.18/x
  3. Step 3: Cross multiply
    5,087.31x = 7,019.66 × 2,849.18
  4. Step 4: Simplify right side
    5,087.31x = 20,000,246.90
  5. Step 5: Solve for x
    x = 20,000,246.90/5,087.31
  6. Step 6: Final answer
    x = 3,931.40

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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.