Home / 4,139.60-6,199.12-2,901.20

Finding the Fourth Proportional to 4,139.60, 6,199.12 and 2,901.20

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Solution

The fourth proportional to 4,139.60, 6,199.12 and 2,901.20 is: 4,344.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.60 : 6,199.12 = 2,901.20 : x
  2. Step 2: Convert to fraction form
    4,139.60/6,199.12 = 2,901.20/x
  3. Step 3: Cross multiply
    4,139.60x = 6,199.12 × 2,901.20
  4. Step 4: Simplify right side
    4,139.60x = 17,984,886.94
  5. Step 5: Solve for x
    x = 17,984,886.94/4,139.60
  6. Step 6: Final answer
    x = 4,344.60

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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.