Home / 2,860-3,946.88-1,618.08

Finding the Fourth Proportional to 2,860, 3,946.88 and 1,618.08

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Solution

The fourth proportional to 2,860, 3,946.88 and 1,618.08 is: 2,233.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,860 : 3,946.88 = 1,618.08 : x
  2. Step 2: Convert to fraction form
    2,860/3,946.88 = 1,618.08/x
  3. Step 3: Cross multiply
    2,860x = 3,946.88 × 1,618.08
  4. Step 4: Simplify right side
    2,860x = 6,386,367.59
  5. Step 5: Solve for x
    x = 6,386,367.59/2,860
  6. Step 6: Final answer
    x = 2,233.00

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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.