Home / 3,652.92-5,478.66-1,312.86

Finding the Fourth Proportional to 3,652.92, 5,478.66 and 1,312.86

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Solution

The fourth proportional to 3,652.92, 5,478.66 and 1,312.86 is: 1,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.92 : 5,478.66 = 1,312.86 : x
  2. Step 2: Convert to fraction form
    3,652.92/5,478.66 = 1,312.86/x
  3. Step 3: Cross multiply
    3,652.92x = 5,478.66 × 1,312.86
  4. Step 4: Simplify right side
    3,652.92x = 7,192,713.57
  5. Step 5: Solve for x
    x = 7,192,713.57/3,652.92
  6. Step 6: Final answer
    x = 1,969.03

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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.