Home / 1,415.25-1,952.51-1,043.12

Finding the Fourth Proportional to 1,415.25, 1,952.51 and 1,043.12

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Solution

The fourth proportional to 1,415.25, 1,952.51 and 1,043.12 is: 1,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.25 : 1,952.51 = 1,043.12 : x
  2. Step 2: Convert to fraction form
    1,415.25/1,952.51 = 1,043.12/x
  3. Step 3: Cross multiply
    1,415.25x = 1,952.51 × 1,043.12
  4. Step 4: Simplify right side
    1,415.25x = 2,036,702.23
  5. Step 5: Solve for x
    x = 2,036,702.23/1,415.25
  6. Step 6: Final answer
    x = 1,439.11

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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.