Home / 1,461.93-2,191.68-1,138.74

Finding the Fourth Proportional to 1,461.93, 2,191.68 and 1,138.74

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Solution

The fourth proportional to 1,461.93, 2,191.68 and 1,138.74 is: 1,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.93 : 2,191.68 = 1,138.74 : x
  2. Step 2: Convert to fraction form
    1,461.93/2,191.68 = 1,138.74/x
  3. Step 3: Cross multiply
    1,461.93x = 2,191.68 × 1,138.74
  4. Step 4: Simplify right side
    1,461.93x = 2,495,753.68
  5. Step 5: Solve for x
    x = 2,495,753.68/1,461.93
  6. Step 6: Final answer
    x = 1,707.16

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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.