Home / 5,628.78-8,432.30-3,156.08

Finding the Fourth Proportional to 5,628.78, 8,432.30 and 3,156.08

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Solution

The fourth proportional to 5,628.78, 8,432.30 and 3,156.08 is: 4,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,628.78 : 8,432.30 = 3,156.08 : x
  2. Step 2: Convert to fraction form
    5,628.78/8,432.30 = 3,156.08/x
  3. Step 3: Cross multiply
    5,628.78x = 8,432.30 × 3,156.08
  4. Step 4: Simplify right side
    5,628.78x = 26,613,013.38
  5. Step 5: Solve for x
    x = 26,613,013.38/5,628.78
  6. Step 6: Final answer
    x = 4,728.03

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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.