Home / 4,375.76-6,561.47-1,909.51

Finding the Fourth Proportional to 4,375.76, 6,561.47 and 1,909.51

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Solution

The fourth proportional to 4,375.76, 6,561.47 and 1,909.51 is: 2,863.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,375.76 : 6,561.47 = 1,909.51 : x
  2. Step 2: Convert to fraction form
    4,375.76/6,561.47 = 1,909.51/x
  3. Step 3: Cross multiply
    4,375.76x = 6,561.47 × 1,909.51
  4. Step 4: Simplify right side
    4,375.76x = 12,529,180.95
  5. Step 5: Solve for x
    x = 12,529,180.95/4,375.76
  6. Step 6: Final answer
    x = 2,863.32

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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.