Home / 3,088.08-4,261.50-1,761.78

Finding the Fourth Proportional to 3,088.08, 4,261.50 and 1,761.78

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Solution

The fourth proportional to 3,088.08, 4,261.50 and 1,761.78 is: 2,431.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.08 : 4,261.50 = 1,761.78 : x
  2. Step 2: Convert to fraction form
    3,088.08/4,261.50 = 1,761.78/x
  3. Step 3: Cross multiply
    3,088.08x = 4,261.50 × 1,761.78
  4. Step 4: Simplify right side
    3,088.08x = 7,507,825.47
  5. Step 5: Solve for x
    x = 7,507,825.47/3,088.08
  6. Step 6: Final answer
    x = 2,431.23

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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.