Home / 2,686.20-3,707.19-1,491.30

Finding the Fourth Proportional to 2,686.20, 3,707.19 and 1,491.30

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Solution

The fourth proportional to 2,686.20, 3,707.19 and 1,491.30 is: 2,058.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.20 : 3,707.19 = 1,491.30 : x
  2. Step 2: Convert to fraction form
    2,686.20/3,707.19 = 1,491.30/x
  3. Step 3: Cross multiply
    2,686.20x = 3,707.19 × 1,491.30
  4. Step 4: Simplify right side
    2,686.20x = 5,528,532.45
  5. Step 5: Solve for x
    x = 5,528,532.45/2,686.20
  6. Step 6: Final answer
    x = 2,058.12

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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.