Home / 7,174.41-10,761.30-1,980.15

Finding the Fourth Proportional to 7,174.41, 10,761.30 and 1,980.15

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Solution

The fourth proportional to 7,174.41, 10,761.30 and 1,980.15 is: 2,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.41 : 10,761.30 = 1,980.15 : x
  2. Step 2: Convert to fraction form
    7,174.41/10,761.30 = 1,980.15/x
  3. Step 3: Cross multiply
    7,174.41x = 10,761.30 × 1,980.15
  4. Step 4: Simplify right side
    7,174.41x = 21,308,988.20
  5. Step 5: Solve for x
    x = 21,308,988.20/7,174.41
  6. Step 6: Final answer
    x = 2,970.14

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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.