Home / 2,886.40-3,982.72-1,707.52

Finding the Fourth Proportional to 2,886.40, 3,982.72 and 1,707.52

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Solution

The fourth proportional to 2,886.40, 3,982.72 and 1,707.52 is: 2,356.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.40 : 3,982.72 = 1,707.52 : x
  2. Step 2: Convert to fraction form
    2,886.40/3,982.72 = 1,707.52/x
  3. Step 3: Cross multiply
    2,886.40x = 3,982.72 × 1,707.52
  4. Step 4: Simplify right side
    2,886.40x = 6,800,574.05
  5. Step 5: Solve for x
    x = 6,800,574.05/2,886.40
  6. Step 6: Final answer
    x = 2,356.07

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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.