Home / 3,142.11-4,336.65-1,816.58

Finding the Fourth Proportional to 3,142.11, 4,336.65 and 1,816.58

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Solution

The fourth proportional to 3,142.11, 4,336.65 and 1,816.58 is: 2,507.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.11 : 4,336.65 = 1,816.58 : x
  2. Step 2: Convert to fraction form
    3,142.11/4,336.65 = 1,816.58/x
  3. Step 3: Cross multiply
    3,142.11x = 4,336.65 × 1,816.58
  4. Step 4: Simplify right side
    3,142.11x = 7,877,871.66
  5. Step 5: Solve for x
    x = 7,877,871.66/3,142.11
  6. Step 6: Final answer
    x = 2,507.19

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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.