Home / 3,879.34-5,353.96-2,307.40

Finding the Fourth Proportional to 3,879.34, 5,353.96 and 2,307.40

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Solution

The fourth proportional to 3,879.34, 5,353.96 and 2,307.40 is: 3,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.34 : 5,353.96 = 2,307.40 : x
  2. Step 2: Convert to fraction form
    3,879.34/5,353.96 = 2,307.40/x
  3. Step 3: Cross multiply
    3,879.34x = 5,353.96 × 2,307.40
  4. Step 4: Simplify right side
    3,879.34x = 12,353,694.77
  5. Step 5: Solve for x
    x = 12,353,694.77/3,879.34
  6. Step 6: Final answer
    x = 3,184.49

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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.