Home / 2,364.12-3,530.07-2,115.72

Finding the Fourth Proportional to 2,364.12, 3,530.07 and 2,115.72

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Solution

The fourth proportional to 2,364.12, 3,530.07 and 2,115.72 is: 3,159.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,364.12 : 3,530.07 = 2,115.72 : x
  2. Step 2: Convert to fraction form
    2,364.12/3,530.07 = 2,115.72/x
  3. Step 3: Cross multiply
    2,364.12x = 3,530.07 × 2,115.72
  4. Step 4: Simplify right side
    2,364.12x = 7,468,639.70
  5. Step 5: Solve for x
    x = 7,468,639.70/2,364.12
  6. Step 6: Final answer
    x = 3,159.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.