Home / 2,226.28-3,339.51-666.31

Finding the Fourth Proportional to 2,226.28, 3,339.51 and 666.31

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Solution

The fourth proportional to 2,226.28, 3,339.51 and 666.31 is: 999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.28 : 3,339.51 = 666.31 : x
  2. Step 2: Convert to fraction form
    2,226.28/3,339.51 = 666.31/x
  3. Step 3: Cross multiply
    2,226.28x = 3,339.51 × 666.31
  4. Step 4: Simplify right side
    2,226.28x = 2,225,128.88
  5. Step 5: Solve for x
    x = 2,225,128.88/2,226.28
  6. Step 6: Final answer
    x = 999.48

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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.