Home / 1,458.94-2,179.41-1,312.46

Finding the Fourth Proportional to 1,458.94, 2,179.41 and 1,312.46

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Solution

The fourth proportional to 1,458.94, 2,179.41 and 1,312.46 is: 1,960.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.94 : 2,179.41 = 1,312.46 : x
  2. Step 2: Convert to fraction form
    1,458.94/2,179.41 = 1,312.46/x
  3. Step 3: Cross multiply
    1,458.94x = 2,179.41 × 1,312.46
  4. Step 4: Simplify right side
    1,458.94x = 2,860,388.45
  5. Step 5: Solve for x
    x = 2,860,388.45/1,458.94
  6. Step 6: Final answer
    x = 1,960.59

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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.