Home / 5,389.18-8,087.46-2,102.30

Finding the Fourth Proportional to 5,389.18, 8,087.46 and 2,102.30

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Solution

The fourth proportional to 5,389.18, 8,087.46 and 2,102.30 is: 3,154.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.18 : 8,087.46 = 2,102.30 : x
  2. Step 2: Convert to fraction form
    5,389.18/8,087.46 = 2,102.30/x
  3. Step 3: Cross multiply
    5,389.18x = 8,087.46 × 2,102.30
  4. Step 4: Simplify right side
    5,389.18x = 17,002,267.16
  5. Step 5: Solve for x
    x = 17,002,267.16/5,389.18
  6. Step 6: Final answer
    x = 3,154.89

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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.