Home / 4,135.86-5,708.07-2,643.30

Finding the Fourth Proportional to 4,135.86, 5,708.07 and 2,643.30

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Solution

The fourth proportional to 4,135.86, 5,708.07 and 2,643.30 is: 3,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,135.86 : 5,708.07 = 2,643.30 : x
  2. Step 2: Convert to fraction form
    4,135.86/5,708.07 = 2,643.30/x
  3. Step 3: Cross multiply
    4,135.86x = 5,708.07 × 2,643.30
  4. Step 4: Simplify right side
    4,135.86x = 15,088,141.43
  5. Step 5: Solve for x
    x = 15,088,141.43/4,135.86
  6. Step 6: Final answer
    x = 3,648.13

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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.