Home / 4,375.18-6,561.24-1,909.45

Finding the Fourth Proportional to 4,375.18, 6,561.24 and 1,909.45

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Solution

The fourth proportional to 4,375.18, 6,561.24 and 1,909.45 is: 2,863.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375.18 : 6,561.24 = 1,909.45 : x
  2. Step 2: Convert to fraction form
    4,375.18/6,561.24 = 1,909.45/x
  3. Step 3: Cross multiply
    4,375.18x = 6,561.24 × 1,909.45
  4. Step 4: Simplify right side
    4,375.18x = 12,528,359.72
  5. Step 5: Solve for x
    x = 12,528,359.72/4,375.18
  6. Step 6: Final answer
    x = 2,863.51

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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.