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Finding the Fourth Proportional to 5,151.51, 7,110.14 and 2,913.48

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Solution

The fourth proportional to 5,151.51, 7,110.14 and 2,913.48 is: 4,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.51 : 7,110.14 = 2,913.48 : x
  2. Step 2: Convert to fraction form
    5,151.51/7,110.14 = 2,913.48/x
  3. Step 3: Cross multiply
    5,151.51x = 7,110.14 × 2,913.48
  4. Step 4: Simplify right side
    5,151.51x = 20,715,250.69
  5. Step 5: Solve for x
    x = 20,715,250.69/5,151.51
  6. Step 6: Final answer
    x = 4,021.20

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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.