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Finding the Fourth Proportional to 2,165.68, 3,248.56 and 626.68

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Solution

The fourth proportional to 2,165.68, 3,248.56 and 626.68 is: 940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.68 : 3,248.56 = 626.68 : x
  2. Step 2: Convert to fraction form
    2,165.68/3,248.56 = 626.68/x
  3. Step 3: Cross multiply
    2,165.68x = 3,248.56 × 626.68
  4. Step 4: Simplify right side
    2,165.68x = 2,035,807.58
  5. Step 5: Solve for x
    x = 2,035,807.58/2,165.68
  6. Step 6: Final answer
    x = 940.03

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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.