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Finding the Fourth Proportional to 7,874.58, 10,866.64 and 4,337.79

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Solution

The fourth proportional to 7,874.58, 10,866.64 and 4,337.79 is: 5,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.58 : 10,866.64 = 4,337.79 : x
  2. Step 2: Convert to fraction form
    7,874.58/10,866.64 = 4,337.79/x
  3. Step 3: Cross multiply
    7,874.58x = 10,866.64 × 4,337.79
  4. Step 4: Simplify right side
    7,874.58x = 47,137,202.33
  5. Step 5: Solve for x
    x = 47,137,202.33/7,874.58
  6. Step 6: Final answer
    x = 5,986.00

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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.