Home / 2,142.31-2,956.44-1,513.95

Finding the Fourth Proportional to 2,142.31, 2,956.44 and 1,513.95

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Solution

The fourth proportional to 2,142.31, 2,956.44 and 1,513.95 is: 2,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.31 : 2,956.44 = 1,513.95 : x
  2. Step 2: Convert to fraction form
    2,142.31/2,956.44 = 1,513.95/x
  3. Step 3: Cross multiply
    2,142.31x = 2,956.44 × 1,513.95
  4. Step 4: Simplify right side
    2,142.31x = 4,475,888.36
  5. Step 5: Solve for x
    x = 4,475,888.36/2,142.31
  6. Step 6: Final answer
    x = 2,089.28

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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.