Home / 5,151.78-7,109.58-3,055.92

Finding the Fourth Proportional to 5,151.78, 7,109.58 and 3,055.92

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Solution

The fourth proportional to 5,151.78, 7,109.58 and 3,055.92 is: 4,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.78 : 7,109.58 = 3,055.92 : x
  2. Step 2: Convert to fraction form
    5,151.78/7,109.58 = 3,055.92/x
  3. Step 3: Cross multiply
    5,151.78x = 7,109.58 × 3,055.92
  4. Step 4: Simplify right side
    5,151.78x = 21,726,307.71
  5. Step 5: Solve for x
    x = 21,726,307.71/5,151.78
  6. Step 6: Final answer
    x = 4,217.24

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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.