Home / 2,642.24-3,645.47-1,758.20

Finding the Fourth Proportional to 2,642.24, 3,645.47 and 1,758.20

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Solution

The fourth proportional to 2,642.24, 3,645.47 and 1,758.20 is: 2,425.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.24 : 3,645.47 = 1,758.20 : x
  2. Step 2: Convert to fraction form
    2,642.24/3,645.47 = 1,758.20/x
  3. Step 3: Cross multiply
    2,642.24x = 3,645.47 × 1,758.20
  4. Step 4: Simplify right side
    2,642.24x = 6,409,451.52
  5. Step 5: Solve for x
    x = 6,409,451.52/2,642.24
  6. Step 6: Final answer
    x = 2,425.76

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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.