Home / 7,321.47-10,102.35-4,177.05

Finding the Fourth Proportional to 7,321.47, 10,102.35 and 4,177.05

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Solution

The fourth proportional to 7,321.47, 10,102.35 and 4,177.05 is: 5,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.47 : 10,102.35 = 4,177.05 : x
  2. Step 2: Convert to fraction form
    7,321.47/10,102.35 = 4,177.05/x
  3. Step 3: Cross multiply
    7,321.47x = 10,102.35 × 4,177.05
  4. Step 4: Simplify right side
    7,321.47x = 42,198,021.07
  5. Step 5: Solve for x
    x = 42,198,021.07/7,321.47
  6. Step 6: Final answer
    x = 5,763.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.