Home / 4,129.47-5,694.75-2,637.86

Finding the Fourth Proportional to 4,129.47, 5,694.75 and 2,637.86

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Solution

The fourth proportional to 4,129.47, 5,694.75 and 2,637.86 is: 3,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.47 : 5,694.75 = 2,637.86 : x
  2. Step 2: Convert to fraction form
    4,129.47/5,694.75 = 2,637.86/x
  3. Step 3: Cross multiply
    4,129.47x = 5,694.75 × 2,637.86
  4. Step 4: Simplify right side
    4,129.47x = 15,021,924.76
  5. Step 5: Solve for x
    x = 15,021,924.76/4,129.47
  6. Step 6: Final answer
    x = 3,637.74

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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.