Home / 6,139.19-9,209.70-1,977.83

Finding the Fourth Proportional to 6,139.19, 9,209.70 and 1,977.83

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Solution

The fourth proportional to 6,139.19, 9,209.70 and 1,977.83 is: 2,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.19 : 9,209.70 = 1,977.83 : x
  2. Step 2: Convert to fraction form
    6,139.19/9,209.70 = 1,977.83/x
  3. Step 3: Cross multiply
    6,139.19x = 9,209.70 × 1,977.83
  4. Step 4: Simplify right side
    6,139.19x = 18,215,220.95
  5. Step 5: Solve for x
    x = 18,215,220.95/6,139.19
  6. Step 6: Final answer
    x = 2,967.04

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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.