Home / 1,522.19-2,283.39-426.60

Finding the Fourth Proportional to 1,522.19, 2,283.39 and 426.60

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Solution

The fourth proportional to 1,522.19, 2,283.39 and 426.60 is: 639.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.19 : 2,283.39 = 426.60 : x
  2. Step 2: Convert to fraction form
    1,522.19/2,283.39 = 426.60/x
  3. Step 3: Cross multiply
    1,522.19x = 2,283.39 × 426.60
  4. Step 4: Simplify right side
    1,522.19x = 974,094.17
  5. Step 5: Solve for x
    x = 974,094.17/1,522.19
  6. Step 6: Final answer
    x = 639.93

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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.