Home / 3,142.56-4,336.96-1,816.60

Finding the Fourth Proportional to 3,142.56, 4,336.96 and 1,816.60

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Solution

The fourth proportional to 3,142.56, 4,336.96 and 1,816.60 is: 2,507.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.56 : 4,336.96 = 1,816.60 : x
  2. Step 2: Convert to fraction form
    3,142.56/4,336.96 = 1,816.60/x
  3. Step 3: Cross multiply
    3,142.56x = 4,336.96 × 1,816.60
  4. Step 4: Simplify right side
    3,142.56x = 7,878,521.54
  5. Step 5: Solve for x
    x = 7,878,521.54/3,142.56
  6. Step 6: Final answer
    x = 2,507.04

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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.