Home / 1,908.86-2,864.35-1,031.34

Finding the Fourth Proportional to 1,908.86, 2,864.35 and 1,031.34

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Solution

The fourth proportional to 1,908.86, 2,864.35 and 1,031.34 is: 1,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.86 : 2,864.35 = 1,031.34 : x
  2. Step 2: Convert to fraction form
    1,908.86/2,864.35 = 1,031.34/x
  3. Step 3: Cross multiply
    1,908.86x = 2,864.35 × 1,031.34
  4. Step 4: Simplify right side
    1,908.86x = 2,954,108.85
  5. Step 5: Solve for x
    x = 2,954,108.85/1,908.86
  6. Step 6: Final answer
    x = 1,547.58

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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.