Home / 2,686.58-3,707.70-1,491.69

Finding the Fourth Proportional to 2,686.58, 3,707.70 and 1,491.69

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Solution

The fourth proportional to 2,686.58, 3,707.70 and 1,491.69 is: 2,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.58 : 3,707.70 = 1,491.69 : x
  2. Step 2: Convert to fraction form
    2,686.58/3,707.70 = 1,491.69/x
  3. Step 3: Cross multiply
    2,686.58x = 3,707.70 × 1,491.69
  4. Step 4: Simplify right side
    2,686.58x = 5,530,739.01
  5. Step 5: Solve for x
    x = 5,530,739.01/2,686.58
  6. Step 6: Final answer
    x = 2,058.65

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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.