Home / 1,018.32-1,524.75-837.90

Finding the Fourth Proportional to 1,018.32, 1,524.75 and 837.90

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Solution

The fourth proportional to 1,018.32, 1,524.75 and 837.90 is: 1,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018.32 : 1,524.75 = 837.90 : x
  2. Step 2: Convert to fraction form
    1,018.32/1,524.75 = 837.90/x
  3. Step 3: Cross multiply
    1,018.32x = 1,524.75 × 837.90
  4. Step 4: Simplify right side
    1,018.32x = 1,277,588.03
  5. Step 5: Solve for x
    x = 1,277,588.03/1,018.32
  6. Step 6: Final answer
    x = 1,254.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.