Home / 7,642.28-11,461.74-2,644.36

Finding the Fourth Proportional to 7,642.28, 11,461.74 and 2,644.36

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Solution

The fourth proportional to 7,642.28, 11,461.74 and 2,644.36 is: 3,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,642.28 : 11,461.74 = 2,644.36 : x
  2. Step 2: Convert to fraction form
    7,642.28/11,461.74 = 2,644.36/x
  3. Step 3: Cross multiply
    7,642.28x = 11,461.74 × 2,644.36
  4. Step 4: Simplify right side
    7,642.28x = 30,308,966.79
  5. Step 5: Solve for x
    x = 30,308,966.79/7,642.28
  6. Step 6: Final answer
    x = 3,965.96

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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.