Home / 2,151.86-3,228.88-1,605.14

Finding the Fourth Proportional to 2,151.86, 3,228.88 and 1,605.14

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Solution

The fourth proportional to 2,151.86, 3,228.88 and 1,605.14 is: 2,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.86 : 3,228.88 = 1,605.14 : x
  2. Step 2: Convert to fraction form
    2,151.86/3,228.88 = 1,605.14/x
  3. Step 3: Cross multiply
    2,151.86x = 3,228.88 × 1,605.14
  4. Step 4: Simplify right side
    2,151.86x = 5,182,804.44
  5. Step 5: Solve for x
    x = 5,182,804.44/2,151.86
  6. Step 6: Final answer
    x = 2,408.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.