Home / 4,220.27-6,330.45-1,298.57

Finding the Fourth Proportional to 4,220.27, 6,330.45 and 1,298.57

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Solution

The fourth proportional to 4,220.27, 6,330.45 and 1,298.57 is: 1,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.27 : 6,330.45 = 1,298.57 : x
  2. Step 2: Convert to fraction form
    4,220.27/6,330.45 = 1,298.57/x
  3. Step 3: Cross multiply
    4,220.27x = 6,330.45 × 1,298.57
  4. Step 4: Simplify right side
    4,220.27x = 8,220,505.67
  5. Step 5: Solve for x
    x = 8,220,505.67/4,220.27
  6. Step 6: Final answer
    x = 1,947.86

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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.