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Finding the Fourth Proportional to 2,295.40, 3,443.10 and 2,158.60

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Solution

The fourth proportional to 2,295.40, 3,443.10 and 2,158.60 is: 3,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.40 : 3,443.10 = 2,158.60 : x
  2. Step 2: Convert to fraction form
    2,295.40/3,443.10 = 2,158.60/x
  3. Step 3: Cross multiply
    2,295.40x = 3,443.10 × 2,158.60
  4. Step 4: Simplify right side
    2,295.40x = 7,432,275.66
  5. Step 5: Solve for x
    x = 7,432,275.66/2,295.40
  6. Step 6: Final answer
    x = 3,237.90

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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.