Home / 2,572.38-3,548.31-1,639.26

Finding the Fourth Proportional to 2,572.38, 3,548.31 and 1,639.26

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Solution

The fourth proportional to 2,572.38, 3,548.31 and 1,639.26 is: 2,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.38 : 3,548.31 = 1,639.26 : x
  2. Step 2: Convert to fraction form
    2,572.38/3,548.31 = 1,639.26/x
  3. Step 3: Cross multiply
    2,572.38x = 3,548.31 × 1,639.26
  4. Step 4: Simplify right side
    2,572.38x = 5,816,602.65
  5. Step 5: Solve for x
    x = 5,816,602.65/2,572.38
  6. Step 6: Final answer
    x = 2,261.18

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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.