Home / 3,712.32-5,562.72-1,980.48

Finding the Fourth Proportional to 3,712.32, 5,562.72 and 1,980.48

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Solution

The fourth proportional to 3,712.32, 5,562.72 and 1,980.48 is: 2,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.32 : 5,562.72 = 1,980.48 : x
  2. Step 2: Convert to fraction form
    3,712.32/5,562.72 = 1,980.48/x
  3. Step 3: Cross multiply
    3,712.32x = 5,562.72 × 1,980.48
  4. Step 4: Simplify right side
    3,712.32x = 11,016,855.71
  5. Step 5: Solve for x
    x = 11,016,855.71/3,712.32
  6. Step 6: Final answer
    x = 2,967.65

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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.