Home / 3,721.12-5,581.50-1,873.06

Finding the Fourth Proportional to 3,721.12, 5,581.50 and 1,873.06

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Solution

The fourth proportional to 3,721.12, 5,581.50 and 1,873.06 is: 2,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.12 : 5,581.50 = 1,873.06 : x
  2. Step 2: Convert to fraction form
    3,721.12/5,581.50 = 1,873.06/x
  3. Step 3: Cross multiply
    3,721.12x = 5,581.50 × 1,873.06
  4. Step 4: Simplify right side
    3,721.12x = 10,454,484.39
  5. Step 5: Solve for x
    x = 10,454,484.39/3,721.12
  6. Step 6: Final answer
    x = 2,809.50

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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.