Home / 3,652.80-5,478.40-1,344.32

Finding the Fourth Proportional to 3,652.80, 5,478.40 and 1,344.32

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Solution

The fourth proportional to 3,652.80, 5,478.40 and 1,344.32 is: 2,016.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,652.80 : 5,478.40 = 1,344.32 : x
  2. Step 2: Convert to fraction form
    3,652.80/5,478.40 = 1,344.32/x
  3. Step 3: Cross multiply
    3,652.80x = 5,478.40 × 1,344.32
  4. Step 4: Simplify right side
    3,652.80x = 7,364,722.69
  5. Step 5: Solve for x
    x = 7,364,722.69/3,652.80
  6. Step 6: Final answer
    x = 2,016.19

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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.