Home / 1,032.76-1,415.45-1,018.36

Finding the Fourth Proportional to 1,032.76, 1,415.45 and 1,018.36

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Solution

The fourth proportional to 1,032.76, 1,415.45 and 1,018.36 is: 1,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.76 : 1,415.45 = 1,018.36 : x
  2. Step 2: Convert to fraction form
    1,032.76/1,415.45 = 1,018.36/x
  3. Step 3: Cross multiply
    1,032.76x = 1,415.45 × 1,018.36
  4. Step 4: Simplify right side
    1,032.76x = 1,441,437.66
  5. Step 5: Solve for x
    x = 1,441,437.66/1,032.76
  6. Step 6: Final answer
    x = 1,395.71

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.