Home / 1,540.31-2,310.39-444.65

Finding the Fourth Proportional to 1,540.31, 2,310.39 and 444.65

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Solution

The fourth proportional to 1,540.31, 2,310.39 and 444.65 is: 666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.31 : 2,310.39 = 444.65 : x
  2. Step 2: Convert to fraction form
    1,540.31/2,310.39 = 444.65/x
  3. Step 3: Cross multiply
    1,540.31x = 2,310.39 × 444.65
  4. Step 4: Simplify right side
    1,540.31x = 1,027,303.36
  5. Step 5: Solve for x
    x = 1,027,303.36/1,540.31
  6. Step 6: Final answer
    x = 666.95

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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.