Home / 1,225.40-1,837.91-1,018.49

Finding the Fourth Proportional to 1,225.40, 1,837.91 and 1,018.49

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Solution

The fourth proportional to 1,225.40, 1,837.91 and 1,018.49 is: 1,527.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.40 : 1,837.91 = 1,018.49 : x
  2. Step 2: Convert to fraction form
    1,225.40/1,837.91 = 1,018.49/x
  3. Step 3: Cross multiply
    1,225.40x = 1,837.91 × 1,018.49
  4. Step 4: Simplify right side
    1,225.40x = 1,871,893.03
  5. Step 5: Solve for x
    x = 1,871,893.03/1,225.40
  6. Step 6: Final answer
    x = 1,527.58

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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.