Home / 1,522.62-2,102.40-1,190.46

Finding the Fourth Proportional to 1,522.62, 2,102.40 and 1,190.46

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Solution

The fourth proportional to 1,522.62, 2,102.40 and 1,190.46 is: 1,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.62 : 2,102.40 = 1,190.46 : x
  2. Step 2: Convert to fraction form
    1,522.62/2,102.40 = 1,190.46/x
  3. Step 3: Cross multiply
    1,522.62x = 2,102.40 × 1,190.46
  4. Step 4: Simplify right side
    1,522.62x = 2,502,823.10
  5. Step 5: Solve for x
    x = 2,502,823.10/1,522.62
  6. Step 6: Final answer
    x = 1,643.76

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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.