Home / 7,331.40-10,998.63-3,172.00

Finding the Fourth Proportional to 7,331.40, 10,998.63 and 3,172.00

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Solution

The fourth proportional to 7,331.40, 10,998.63 and 3,172.00 is: 4,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.40 : 10,998.63 = 3,172.00 : x
  2. Step 2: Convert to fraction form
    7,331.40/10,998.63 = 3,172.00/x
  3. Step 3: Cross multiply
    7,331.40x = 10,998.63 × 3,172.00
  4. Step 4: Simplify right side
    7,331.40x = 34,887,627.70
  5. Step 5: Solve for x
    x = 34,887,627.70/7,331.40
  6. Step 6: Final answer
    x = 4,758.66

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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.