Home / 3,522.32-4,849.96-3,128.66

Finding the Fourth Proportional to 3,522.32, 4,849.96 and 3,128.66

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Solution

The fourth proportional to 3,522.32, 4,849.96 and 3,128.66 is: 4,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,522.32 : 4,849.96 = 3,128.66 : x
  2. Step 2: Convert to fraction form
    3,522.32/4,849.96 = 3,128.66/x
  3. Step 3: Cross multiply
    3,522.32x = 4,849.96 × 3,128.66
  4. Step 4: Simplify right side
    3,522.32x = 15,173,875.85
  5. Step 5: Solve for x
    x = 15,173,875.85/3,522.32
  6. Step 6: Final answer
    x = 4,307.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.