Home / 4,009.10-5,531.90-3,686.51

Finding the Fourth Proportional to 4,009.10, 5,531.90 and 3,686.51

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Solution

The fourth proportional to 4,009.10, 5,531.90 and 3,686.51 is: 5,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,009.10 : 5,531.90 = 3,686.51 : x
  2. Step 2: Convert to fraction form
    4,009.10/5,531.90 = 3,686.51/x
  3. Step 3: Cross multiply
    4,009.10x = 5,531.90 × 3,686.51
  4. Step 4: Simplify right side
    4,009.10x = 20,393,400.07
  5. Step 5: Solve for x
    x = 20,393,400.07/4,009.10
  6. Step 6: Final answer
    x = 5,086.78

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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.