Home / 2,687.08-3,707.22-1,756.12

Finding the Fourth Proportional to 2,687.08, 3,707.22 and 1,756.12

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Solution

The fourth proportional to 2,687.08, 3,707.22 and 1,756.12 is: 2,422.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.08 : 3,707.22 = 1,756.12 : x
  2. Step 2: Convert to fraction form
    2,687.08/3,707.22 = 1,756.12/x
  3. Step 3: Cross multiply
    2,687.08x = 3,707.22 × 1,756.12
  4. Step 4: Simplify right side
    2,687.08x = 6,510,323.19
  5. Step 5: Solve for x
    x = 6,510,323.19/2,687.08
  6. Step 6: Final answer
    x = 2,422.82

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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.