Home / 1,868.31-2,579.45-1,671.48

Finding the Fourth Proportional to 1,868.31, 2,579.45 and 1,671.48

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Solution

The fourth proportional to 1,868.31, 2,579.45 and 1,671.48 is: 2,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.31 : 2,579.45 = 1,671.48 : x
  2. Step 2: Convert to fraction form
    1,868.31/2,579.45 = 1,671.48/x
  3. Step 3: Cross multiply
    1,868.31x = 2,579.45 × 1,671.48
  4. Step 4: Simplify right side
    1,868.31x = 4,311,490.73
  5. Step 5: Solve for x
    x = 4,311,490.73/1,868.31
  6. Step 6: Final answer
    x = 2,307.70

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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.