Home / 3,582.80-5,374.72-1,393.12

Finding the Fourth Proportional to 3,582.80, 5,374.72 and 1,393.12

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Solution

The fourth proportional to 3,582.80, 5,374.72 and 1,393.12 is: 2,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582.80 : 5,374.72 = 1,393.12 : x
  2. Step 2: Convert to fraction form
    3,582.80/5,374.72 = 1,393.12/x
  3. Step 3: Cross multiply
    3,582.80x = 5,374.72 × 1,393.12
  4. Step 4: Simplify right side
    3,582.80x = 7,487,629.93
  5. Step 5: Solve for x
    x = 7,487,629.93/3,582.80
  6. Step 6: Final answer
    x = 2,089.88

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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.