Home / 2,145.29-2,959.13-1,357.97

Finding the Fourth Proportional to 2,145.29, 2,959.13 and 1,357.97

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Solution

The fourth proportional to 2,145.29, 2,959.13 and 1,357.97 is: 1,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.29 : 2,959.13 = 1,357.97 : x
  2. Step 2: Convert to fraction form
    2,145.29/2,959.13 = 1,357.97/x
  3. Step 3: Cross multiply
    2,145.29x = 2,959.13 × 1,357.97
  4. Step 4: Simplify right side
    2,145.29x = 4,018,398.37
  5. Step 5: Solve for x
    x = 4,018,398.37/2,145.29
  6. Step 6: Final answer
    x = 1,873.13

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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.