Home / 5,918.11-8,868.70-4,345.78

Finding the Fourth Proportional to 5,918.11, 8,868.70 and 4,345.78

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Solution

The fourth proportional to 5,918.11, 8,868.70 and 4,345.78 is: 6,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.11 : 8,868.70 = 4,345.78 : x
  2. Step 2: Convert to fraction form
    5,918.11/8,868.70 = 4,345.78/x
  3. Step 3: Cross multiply
    5,918.11x = 8,868.70 × 4,345.78
  4. Step 4: Simplify right side
    5,918.11x = 38,541,393.87
  5. Step 5: Solve for x
    x = 38,541,393.87/5,918.11
  6. Step 6: Final answer
    x = 6,512.45

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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.