Home / 3,628.64-5,443.68-1,031.68

Finding the Fourth Proportional to 3,628.64, 5,443.68 and 1,031.68

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Solution

The fourth proportional to 3,628.64, 5,443.68 and 1,031.68 is: 1,547.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.64 : 5,443.68 = 1,031.68 : x
  2. Step 2: Convert to fraction form
    3,628.64/5,443.68 = 1,031.68/x
  3. Step 3: Cross multiply
    3,628.64x = 5,443.68 × 1,031.68
  4. Step 4: Simplify right side
    3,628.64x = 5,616,135.78
  5. Step 5: Solve for x
    x = 5,616,135.78/3,628.64
  6. Step 6: Final answer
    x = 1,547.72

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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.