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Finding the Fourth Proportional to 2,834.57, 3,911.10 and 1,655.11

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Solution

The fourth proportional to 2,834.57, 3,911.10 and 1,655.11 is: 2,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.57 : 3,911.10 = 1,655.11 : x
  2. Step 2: Convert to fraction form
    2,834.57/3,911.10 = 1,655.11/x
  3. Step 3: Cross multiply
    2,834.57x = 3,911.10 × 1,655.11
  4. Step 4: Simplify right side
    2,834.57x = 6,473,281.17
  5. Step 5: Solve for x
    x = 6,473,281.17/2,834.57
  6. Step 6: Final answer
    x = 2,283.69

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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.