Home / 2,886.29-3,981.49-1,707.13

Finding the Fourth Proportional to 2,886.29, 3,981.49 and 1,707.13

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Solution

The fourth proportional to 2,886.29, 3,981.49 and 1,707.13 is: 2,354.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.29 : 3,981.49 = 1,707.13 : x
  2. Step 2: Convert to fraction form
    2,886.29/3,981.49 = 1,707.13/x
  3. Step 3: Cross multiply
    2,886.29x = 3,981.49 × 1,707.13
  4. Step 4: Simplify right side
    2,886.29x = 6,796,906.80
  5. Step 5: Solve for x
    x = 6,796,906.80/2,886.29
  6. Step 6: Final answer
    x = 2,354.90

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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.