Home / 2,909.62-4,346.72-1,861.24

Finding the Fourth Proportional to 2,909.62, 4,346.72 and 1,861.24

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Solution

The fourth proportional to 2,909.62, 4,346.72 and 1,861.24 is: 2,780.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909.62 : 4,346.72 = 1,861.24 : x
  2. Step 2: Convert to fraction form
    2,909.62/4,346.72 = 1,861.24/x
  3. Step 3: Cross multiply
    2,909.62x = 4,346.72 × 1,861.24
  4. Step 4: Simplify right side
    2,909.62x = 8,090,289.13
  5. Step 5: Solve for x
    x = 8,090,289.13/2,909.62
  6. Step 6: Final answer
    x = 2,780.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.