Home / 2,861.19-3,948.50-1,742.18

Finding the Fourth Proportional to 2,861.19, 3,948.50 and 1,742.18

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Solution

The fourth proportional to 2,861.19, 3,948.50 and 1,742.18 is: 2,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.19 : 3,948.50 = 1,742.18 : x
  2. Step 2: Convert to fraction form
    2,861.19/3,948.50 = 1,742.18/x
  3. Step 3: Cross multiply
    2,861.19x = 3,948.50 × 1,742.18
  4. Step 4: Simplify right side
    2,861.19x = 6,878,982.34
  5. Step 5: Solve for x
    x = 6,878,982.34/2,861.19
  6. Step 6: Final answer
    x = 2,404.24

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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.