Home / 3,461.60-5,191.86-1,269.20

Finding the Fourth Proportional to 3,461.60, 5,191.86 and 1,269.20

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Solution

The fourth proportional to 3,461.60, 5,191.86 and 1,269.20 is: 1,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,461.60 : 5,191.86 = 1,269.20 : x
  2. Step 2: Convert to fraction form
    3,461.60/5,191.86 = 1,269.20/x
  3. Step 3: Cross multiply
    3,461.60x = 5,191.86 × 1,269.20
  4. Step 4: Simplify right side
    3,461.60x = 6,589,508.71
  5. Step 5: Solve for x
    x = 6,589,508.71/3,461.60
  6. Step 6: Final answer
    x = 1,903.60

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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.