Home / 1,508.75-2,260.31-890.63

Finding the Fourth Proportional to 1,508.75, 2,260.31 and 890.63

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Solution

The fourth proportional to 1,508.75, 2,260.31 and 890.63 is: 1,334.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.75 : 2,260.31 = 890.63 : x
  2. Step 2: Convert to fraction form
    1,508.75/2,260.31 = 890.63/x
  3. Step 3: Cross multiply
    1,508.75x = 2,260.31 × 890.63
  4. Step 4: Simplify right side
    1,508.75x = 2,013,088.59
  5. Step 5: Solve for x
    x = 2,013,088.59/1,508.75
  6. Step 6: Final answer
    x = 1,334.28

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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.