Home / 3,019.12-4,529.04-1,287.16

Finding the Fourth Proportional to 3,019.12, 4,529.04 and 1,287.16

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Solution

The fourth proportional to 3,019.12, 4,529.04 and 1,287.16 is: 1,930.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.12 : 4,529.04 = 1,287.16 : x
  2. Step 2: Convert to fraction form
    3,019.12/4,529.04 = 1,287.16/x
  3. Step 3: Cross multiply
    3,019.12x = 4,529.04 × 1,287.16
  4. Step 4: Simplify right side
    3,019.12x = 5,829,599.13
  5. Step 5: Solve for x
    x = 5,829,599.13/3,019.12
  6. Step 6: Final answer
    x = 1,930.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.