Home / 7,566.40-11,346.90-3,122.20

Finding the Fourth Proportional to 7,566.40, 11,346.90 and 3,122.20

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Solution

The fourth proportional to 7,566.40, 11,346.90 and 3,122.20 is: 4,682.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,566.40 : 11,346.90 = 3,122.20 : x
  2. Step 2: Convert to fraction form
    7,566.40/11,346.90 = 3,122.20/x
  3. Step 3: Cross multiply
    7,566.40x = 11,346.90 × 3,122.20
  4. Step 4: Simplify right side
    7,566.40x = 35,427,291.18
  5. Step 5: Solve for x
    x = 35,427,291.18/7,566.40
  6. Step 6: Final answer
    x = 4,682.19

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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.