Home / 3,349.20-4,621.72-1,857

Finding the Fourth Proportional to 3,349.20, 4,621.72 and 1,857

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Solution

The fourth proportional to 3,349.20, 4,621.72 and 1,857 is: 2,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,349.20 : 4,621.72 = 1,857 : x
  2. Step 2: Convert to fraction form
    3,349.20/4,621.72 = 1,857/x
  3. Step 3: Cross multiply
    3,349.20x = 4,621.72 × 1,857
  4. Step 4: Simplify right side
    3,349.20x = 8,582,534.04
  5. Step 5: Solve for x
    x = 8,582,534.04/3,349.20
  6. Step 6: Final answer
    x = 2,562.56

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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.