Home / 5,151.51-7,728.48-2,230.11

Finding the Fourth Proportional to 5,151.51, 7,728.48 and 2,230.11

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Solution

The fourth proportional to 5,151.51, 7,728.48 and 2,230.11 is: 3,345.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.51 : 7,728.48 = 2,230.11 : x
  2. Step 2: Convert to fraction form
    5,151.51/7,728.48 = 2,230.11/x
  3. Step 3: Cross multiply
    5,151.51x = 7,728.48 × 2,230.11
  4. Step 4: Simplify right side
    5,151.51x = 17,235,360.53
  5. Step 5: Solve for x
    x = 17,235,360.53/5,151.51
  6. Step 6: Final answer
    x = 3,345.69

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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.