Home / 3,142.42-4,336.55-1,816.12

Finding the Fourth Proportional to 3,142.42, 4,336.55 and 1,816.12

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Solution

The fourth proportional to 3,142.42, 4,336.55 and 1,816.12 is: 2,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.42 : 4,336.55 = 1,816.12 : x
  2. Step 2: Convert to fraction form
    3,142.42/4,336.55 = 1,816.12/x
  3. Step 3: Cross multiply
    3,142.42x = 4,336.55 × 1,816.12
  4. Step 4: Simplify right side
    3,142.42x = 7,875,695.19
  5. Step 5: Solve for x
    x = 7,875,695.19/3,142.42
  6. Step 6: Final answer
    x = 2,506.25

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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.