Home / 1,948.29-2,919.06-1,397.76

Finding the Fourth Proportional to 1,948.29, 2,919.06 and 1,397.76

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Solution

The fourth proportional to 1,948.29, 2,919.06 and 1,397.76 is: 2,094.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.29 : 2,919.06 = 1,397.76 : x
  2. Step 2: Convert to fraction form
    1,948.29/2,919.06 = 1,397.76/x
  3. Step 3: Cross multiply
    1,948.29x = 2,919.06 × 1,397.76
  4. Step 4: Simplify right side
    1,948.29x = 4,080,145.31
  5. Step 5: Solve for x
    x = 4,080,145.31/1,948.29
  6. Step 6: Final answer
    x = 2,094.22

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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.