Home / 7,868.72-10,858.75-4,331.86

Finding the Fourth Proportional to 7,868.72, 10,858.75 and 4,331.86

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Solution

The fourth proportional to 7,868.72, 10,858.75 and 4,331.86 is: 5,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.72 : 10,858.75 = 4,331.86 : x
  2. Step 2: Convert to fraction form
    7,868.72/10,858.75 = 4,331.86/x
  3. Step 3: Cross multiply
    7,868.72x = 10,858.75 × 4,331.86
  4. Step 4: Simplify right side
    7,868.72x = 47,038,584.78
  5. Step 5: Solve for x
    x = 47,038,584.78/7,868.72
  6. Step 6: Final answer
    x = 5,977.92

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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.