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Finding the Fourth Proportional to 5,335.45, 7,995.53 and 3,918.75

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Solution

The fourth proportional to 5,335.45, 7,995.53 and 3,918.75 is: 5,872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335.45 : 7,995.53 = 3,918.75 : x
  2. Step 2: Convert to fraction form
    5,335.45/7,995.53 = 3,918.75/x
  3. Step 3: Cross multiply
    5,335.45x = 7,995.53 × 3,918.75
  4. Step 4: Simplify right side
    5,335.45x = 31,332,483.19
  5. Step 5: Solve for x
    x = 31,332,483.19/5,335.45
  6. Step 6: Final answer
    x = 5,872.51

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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.