Home / 1,031.45-1,547.40-300.97

Finding the Fourth Proportional to 1,031.45, 1,547.40 and 300.97

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Solution

The fourth proportional to 1,031.45, 1,547.40 and 300.97 is: 451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.45 : 1,547.40 = 300.97 : x
  2. Step 2: Convert to fraction form
    1,031.45/1,547.40 = 300.97/x
  3. Step 3: Cross multiply
    1,031.45x = 1,547.40 × 300.97
  4. Step 4: Simplify right side
    1,031.45x = 465,716.36
  5. Step 5: Solve for x
    x = 465,716.36/1,031.45
  6. Step 6: Final answer
    x = 451.52

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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.