Home / 2,491.24-3,438.16-1,860.68

Finding the Fourth Proportional to 2,491.24, 3,438.16 and 1,860.68

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Solution

The fourth proportional to 2,491.24, 3,438.16 and 1,860.68 is: 2,567.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.24 : 3,438.16 = 1,860.68 : x
  2. Step 2: Convert to fraction form
    2,491.24/3,438.16 = 1,860.68/x
  3. Step 3: Cross multiply
    2,491.24x = 3,438.16 × 1,860.68
  4. Step 4: Simplify right side
    2,491.24x = 6,397,295.86
  5. Step 5: Solve for x
    x = 6,397,295.86/2,491.24
  6. Step 6: Final answer
    x = 2,567.91

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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.