Home / 5,378.10-8,064.28-2,087.88

Finding the Fourth Proportional to 5,378.10, 8,064.28 and 2,087.88

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Solution

The fourth proportional to 5,378.10, 8,064.28 and 2,087.88 is: 3,130.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.10 : 8,064.28 = 2,087.88 : x
  2. Step 2: Convert to fraction form
    5,378.10/8,064.28 = 2,087.88/x
  3. Step 3: Cross multiply
    5,378.10x = 8,064.28 × 2,087.88
  4. Step 4: Simplify right side
    5,378.10x = 16,837,248.93
  5. Step 5: Solve for x
    x = 16,837,248.93/5,378.10
  6. Step 6: Final answer
    x = 3,130.71

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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.