Home / 3,197.28-4,412.40-1,800.16

Finding the Fourth Proportional to 3,197.28, 4,412.40 and 1,800.16

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Solution

The fourth proportional to 3,197.28, 4,412.40 and 1,800.16 is: 2,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.28 : 4,412.40 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    3,197.28/4,412.40 = 1,800.16/x
  3. Step 3: Cross multiply
    3,197.28x = 4,412.40 × 1,800.16
  4. Step 4: Simplify right side
    3,197.28x = 7,943,025.98
  5. Step 5: Solve for x
    x = 7,943,025.98/3,197.28
  6. Step 6: Final answer
    x = 2,484.31

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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.