Home / 7,537.02-10,400.48-4,179.78

Finding the Fourth Proportional to 7,537.02, 10,400.48 and 4,179.78

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Solution

The fourth proportional to 7,537.02, 10,400.48 and 4,179.78 is: 5,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,537.02 : 10,400.48 = 4,179.78 : x
  2. Step 2: Convert to fraction form
    7,537.02/10,400.48 = 4,179.78/x
  3. Step 3: Cross multiply
    7,537.02x = 10,400.48 × 4,179.78
  4. Step 4: Simplify right side
    7,537.02x = 43,471,718.29
  5. Step 5: Solve for x
    x = 43,471,718.29/7,537.02
  6. Step 6: Final answer
    x = 5,767.76

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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.