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Finding the Fourth Proportional to 3,159.65, 4,361.20 and 1,833.10

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Solution

The fourth proportional to 3,159.65, 4,361.20 and 1,833.10 is: 2,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.65 : 4,361.20 = 1,833.10 : x
  2. Step 2: Convert to fraction form
    3,159.65/4,361.20 = 1,833.10/x
  3. Step 3: Cross multiply
    3,159.65x = 4,361.20 × 1,833.10
  4. Step 4: Simplify right side
    3,159.65x = 7,994,500.23
  5. Step 5: Solve for x
    x = 7,994,500.23/3,159.65
  6. Step 6: Final answer
    x = 2,530.18

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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.