Home / 2,132.79-2,943-1,248.36

Finding the Fourth Proportional to 2,132.79, 2,943 and 1,248.36

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Solution

The fourth proportional to 2,132.79, 2,943 and 1,248.36 is: 1,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.79 : 2,943 = 1,248.36 : x
  2. Step 2: Convert to fraction form
    2,132.79/2,943 = 1,248.36/x
  3. Step 3: Cross multiply
    2,132.79x = 2,943 × 1,248.36
  4. Step 4: Simplify right side
    2,132.79x = 3,673,923.48
  5. Step 5: Solve for x
    x = 3,673,923.48/2,132.79
  6. Step 6: Final answer
    x = 1,722.59

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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.