Home / 3,127.68-4,686.86-2,851.07

Finding the Fourth Proportional to 3,127.68, 4,686.86 and 2,851.07

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Solution

The fourth proportional to 3,127.68, 4,686.86 and 2,851.07 is: 4,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.68 : 4,686.86 = 2,851.07 : x
  2. Step 2: Convert to fraction form
    3,127.68/4,686.86 = 2,851.07/x
  3. Step 3: Cross multiply
    3,127.68x = 4,686.86 × 2,851.07
  4. Step 4: Simplify right side
    3,127.68x = 13,362,565.94
  5. Step 5: Solve for x
    x = 13,362,565.94/3,127.68
  6. Step 6: Final answer
    x = 4,272.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.