Home / 5,527.61-8,290.13-1,578.78

Finding the Fourth Proportional to 5,527.61, 8,290.13 and 1,578.78

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Solution

The fourth proportional to 5,527.61, 8,290.13 and 1,578.78 is: 2,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,527.61 : 8,290.13 = 1,578.78 : x
  2. Step 2: Convert to fraction form
    5,527.61/8,290.13 = 1,578.78/x
  3. Step 3: Cross multiply
    5,527.61x = 8,290.13 × 1,578.78
  4. Step 4: Simplify right side
    5,527.61x = 13,088,291.44
  5. Step 5: Solve for x
    x = 13,088,291.44/5,527.61
  6. Step 6: Final answer
    x = 2,367.81

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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.