Home / 2,207.30-3,312.11-975.56

Finding the Fourth Proportional to 2,207.30, 3,312.11 and 975.56

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Solution

The fourth proportional to 2,207.30, 3,312.11 and 975.56 is: 1,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.30 : 3,312.11 = 975.56 : x
  2. Step 2: Convert to fraction form
    2,207.30/3,312.11 = 975.56/x
  3. Step 3: Cross multiply
    2,207.30x = 3,312.11 × 975.56
  4. Step 4: Simplify right side
    2,207.30x = 3,231,140.59
  5. Step 5: Solve for x
    x = 3,231,140.59/2,207.30
  6. Step 6: Final answer
    x = 1,463.85

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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.