Home / 2,142.86-2,956.66-1,304

Finding the Fourth Proportional to 2,142.86, 2,956.66 and 1,304

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Solution

The fourth proportional to 2,142.86, 2,956.66 and 1,304 is: 1,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.86 : 2,956.66 = 1,304 : x
  2. Step 2: Convert to fraction form
    2,142.86/2,956.66 = 1,304/x
  3. Step 3: Cross multiply
    2,142.86x = 2,956.66 × 1,304
  4. Step 4: Simplify right side
    2,142.86x = 3,855,484.64
  5. Step 5: Solve for x
    x = 3,855,484.64/2,142.86
  6. Step 6: Final answer
    x = 1,799.22

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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.