Home / 3,628.28-5,442.70-1,031.42

Finding the Fourth Proportional to 3,628.28, 5,442.70 and 1,031.42

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Solution

The fourth proportional to 3,628.28, 5,442.70 and 1,031.42 is: 1,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.28 : 5,442.70 = 1,031.42 : x
  2. Step 2: Convert to fraction form
    3,628.28/5,442.70 = 1,031.42/x
  3. Step 3: Cross multiply
    3,628.28x = 5,442.70 × 1,031.42
  4. Step 4: Simplify right side
    3,628.28x = 5,613,709.63
  5. Step 5: Solve for x
    x = 5,613,709.63/3,628.28
  6. Step 6: Final answer
    x = 1,547.21

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1.5x scale

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.