Home / 4,507.59-6,761.40-1,220.70

Finding the Fourth Proportional to 4,507.59, 6,761.40 and 1,220.70

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Solution

The fourth proportional to 4,507.59, 6,761.40 and 1,220.70 is: 1,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,507.59 : 6,761.40 = 1,220.70 : x
  2. Step 2: Convert to fraction form
    4,507.59/6,761.40 = 1,220.70/x
  3. Step 3: Cross multiply
    4,507.59x = 6,761.40 × 1,220.70
  4. Step 4: Simplify right side
    4,507.59x = 8,253,640.98
  5. Step 5: Solve for x
    x = 8,253,640.98/4,507.59
  6. Step 6: Final answer
    x = 1,831.05

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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.