Home / 1,506.25-2,261.27-890.38

Finding the Fourth Proportional to 1,506.25, 2,261.27 and 890.38

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Solution

The fourth proportional to 1,506.25, 2,261.27 and 890.38 is: 1,336.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.25 : 2,261.27 = 890.38 : x
  2. Step 2: Convert to fraction form
    1,506.25/2,261.27 = 890.38/x
  3. Step 3: Cross multiply
    1,506.25x = 2,261.27 × 890.38
  4. Step 4: Simplify right side
    1,506.25x = 2,013,389.58
  5. Step 5: Solve for x
    x = 2,013,389.58/1,506.25
  6. Step 6: Final answer
    x = 1,336.69

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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.