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Finding the Fourth Proportional to 2,165.51, 3,248.67 and 705.08

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Solution

The fourth proportional to 2,165.51, 3,248.67 and 705.08 is: 1,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.51 : 3,248.67 = 705.08 : x
  2. Step 2: Convert to fraction form
    2,165.51/3,248.67 = 705.08/x
  3. Step 3: Cross multiply
    2,165.51x = 3,248.67 × 705.08
  4. Step 4: Simplify right side
    2,165.51x = 2,290,572.24
  5. Step 5: Solve for x
    x = 2,290,572.24/2,165.51
  6. Step 6: Final answer
    x = 1,057.75

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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.