Home / 4,155.80-6,220.65-2,279.12

Finding the Fourth Proportional to 4,155.80, 6,220.65 and 2,279.12

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Solution

The fourth proportional to 4,155.80, 6,220.65 and 2,279.12 is: 3,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.80 : 6,220.65 = 2,279.12 : x
  2. Step 2: Convert to fraction form
    4,155.80/6,220.65 = 2,279.12/x
  3. Step 3: Cross multiply
    4,155.80x = 6,220.65 × 2,279.12
  4. Step 4: Simplify right side
    4,155.80x = 14,177,607.83
  5. Step 5: Solve for x
    x = 14,177,607.83/4,155.80
  6. Step 6: Final answer
    x = 3,411.52

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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.