Home / 7,203.32-9,940.02-4,218.76

Finding the Fourth Proportional to 7,203.32, 9,940.02 and 4,218.76

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Solution

The fourth proportional to 7,203.32, 9,940.02 and 4,218.76 is: 5,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.32 : 9,940.02 = 4,218.76 : x
  2. Step 2: Convert to fraction form
    7,203.32/9,940.02 = 4,218.76/x
  3. Step 3: Cross multiply
    7,203.32x = 9,940.02 × 4,218.76
  4. Step 4: Simplify right side
    7,203.32x = 41,934,558.78
  5. Step 5: Solve for x
    x = 41,934,558.78/7,203.32
  6. Step 6: Final answer
    x = 5,821.56

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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.