Home / 6,619.70-9,925.50-2,672.78

Finding the Fourth Proportional to 6,619.70, 9,925.50 and 2,672.78

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Solution

The fourth proportional to 6,619.70, 9,925.50 and 2,672.78 is: 4,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.70 : 9,925.50 = 2,672.78 : x
  2. Step 2: Convert to fraction form
    6,619.70/9,925.50 = 2,672.78/x
  3. Step 3: Cross multiply
    6,619.70x = 9,925.50 × 2,672.78
  4. Step 4: Simplify right side
    6,619.70x = 26,528,677.89
  5. Step 5: Solve for x
    x = 26,528,677.89/6,619.70
  6. Step 6: Final answer
    x = 4,007.53

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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.