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Finding the Fourth Proportional to 3,443.40, 5,165.10 and 846.32

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Solution

The fourth proportional to 3,443.40, 5,165.10 and 846.32 is: 1,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,443.40 : 5,165.10 = 846.32 : x
  2. Step 2: Convert to fraction form
    3,443.40/5,165.10 = 846.32/x
  3. Step 3: Cross multiply
    3,443.40x = 5,165.10 × 846.32
  4. Step 4: Simplify right side
    3,443.40x = 4,371,301.61
  5. Step 5: Solve for x
    x = 4,371,301.61/3,443.40
  6. Step 6: Final answer
    x = 1,269.47

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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.