Home / 1,497.31-2,066.38-867.98

Finding the Fourth Proportional to 1,497.31, 2,066.38 and 867.98

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Solution

The fourth proportional to 1,497.31, 2,066.38 and 867.98 is: 1,197.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.31 : 2,066.38 = 867.98 : x
  2. Step 2: Convert to fraction form
    1,497.31/2,066.38 = 867.98/x
  3. Step 3: Cross multiply
    1,497.31x = 2,066.38 × 867.98
  4. Step 4: Simplify right side
    1,497.31x = 1,793,579.51
  5. Step 5: Solve for x
    x = 1,793,579.51/1,497.31
  6. Step 6: Final answer
    x = 1,197.87

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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.