Home / 2,151.36-3,235.68-2,132.16

Finding the Fourth Proportional to 2,151.36, 3,235.68 and 2,132.16

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Solution

The fourth proportional to 2,151.36, 3,235.68 and 2,132.16 is: 3,206.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.36 : 3,235.68 = 2,132.16 : x
  2. Step 2: Convert to fraction form
    2,151.36/3,235.68 = 2,132.16/x
  3. Step 3: Cross multiply
    2,151.36x = 3,235.68 × 2,132.16
  4. Step 4: Simplify right side
    2,151.36x = 6,898,987.47
  5. Step 5: Solve for x
    x = 6,898,987.47/2,151.36
  6. Step 6: Final answer
    x = 3,206.80

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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.