Home / 4,088.78-6,129.93-1,490.30

Finding the Fourth Proportional to 4,088.78, 6,129.93 and 1,490.30

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Solution

The fourth proportional to 4,088.78, 6,129.93 and 1,490.30 is: 2,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.78 : 6,129.93 = 1,490.30 : x
  2. Step 2: Convert to fraction form
    4,088.78/6,129.93 = 1,490.30/x
  3. Step 3: Cross multiply
    4,088.78x = 6,129.93 × 1,490.30
  4. Step 4: Simplify right side
    4,088.78x = 9,135,434.68
  5. Step 5: Solve for x
    x = 9,135,434.68/4,088.78
  6. Step 6: Final answer
    x = 2,234.27

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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.