Home / 2,859.68-4,290.48-1,127.36

Finding the Fourth Proportional to 2,859.68, 4,290.48 and 1,127.36

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Solution

The fourth proportional to 2,859.68, 4,290.48 and 1,127.36 is: 1,691.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.68 : 4,290.48 = 1,127.36 : x
  2. Step 2: Convert to fraction form
    2,859.68/4,290.48 = 1,127.36/x
  3. Step 3: Cross multiply
    2,859.68x = 4,290.48 × 1,127.36
  4. Step 4: Simplify right side
    2,859.68x = 4,836,915.53
  5. Step 5: Solve for x
    x = 4,836,915.53/2,859.68
  6. Step 6: Final answer
    x = 1,691.42

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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.