Home / 3,211.92-4,432.47-1,776.24

Finding the Fourth Proportional to 3,211.92, 4,432.47 and 1,776.24

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Solution

The fourth proportional to 3,211.92, 4,432.47 and 1,776.24 is: 2,451.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.92 : 4,432.47 = 1,776.24 : x
  2. Step 2: Convert to fraction form
    3,211.92/4,432.47 = 1,776.24/x
  3. Step 3: Cross multiply
    3,211.92x = 4,432.47 × 1,776.24
  4. Step 4: Simplify right side
    3,211.92x = 7,873,130.51
  5. Step 5: Solve for x
    x = 7,873,130.51/3,211.92
  6. Step 6: Final answer
    x = 2,451.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.