Home / 1,431.73-1,973.47-1,011.41

Finding the Fourth Proportional to 1,431.73, 1,973.47 and 1,011.41

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Solution

The fourth proportional to 1,431.73, 1,973.47 and 1,011.41 is: 1,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.73 : 1,973.47 = 1,011.41 : x
  2. Step 2: Convert to fraction form
    1,431.73/1,973.47 = 1,011.41/x
  3. Step 3: Cross multiply
    1,431.73x = 1,973.47 × 1,011.41
  4. Step 4: Simplify right side
    1,431.73x = 1,995,987.29
  5. Step 5: Solve for x
    x = 1,995,987.29/1,431.73
  6. Step 6: Final answer
    x = 1,394.11

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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.