Home / 3,551.52-5,330.40-1,821.12

Finding the Fourth Proportional to 3,551.52, 5,330.40 and 1,821.12

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Solution

The fourth proportional to 3,551.52, 5,330.40 and 1,821.12 is: 2,733.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.52 : 5,330.40 = 1,821.12 : x
  2. Step 2: Convert to fraction form
    3,551.52/5,330.40 = 1,821.12/x
  3. Step 3: Cross multiply
    3,551.52x = 5,330.40 × 1,821.12
  4. Step 4: Simplify right side
    3,551.52x = 9,707,298.05
  5. Step 5: Solve for x
    x = 9,707,298.05/3,551.52
  6. Step 6: Final answer
    x = 2,733.28

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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.