Home / 6,347.40-8,761.29-4,109.22

Finding the Fourth Proportional to 6,347.40, 8,761.29 and 4,109.22

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Solution

The fourth proportional to 6,347.40, 8,761.29 and 4,109.22 is: 5,671.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.40 : 8,761.29 = 4,109.22 : x
  2. Step 2: Convert to fraction form
    6,347.40/8,761.29 = 4,109.22/x
  3. Step 3: Cross multiply
    6,347.40x = 8,761.29 × 4,109.22
  4. Step 4: Simplify right side
    6,347.40x = 36,002,068.09
  5. Step 5: Solve for x
    x = 36,002,068.09/6,347.40
  6. Step 6: Final answer
    x = 5,671.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.