Home / 2,035.78-3,056.10-1,308.40

Finding the Fourth Proportional to 2,035.78, 3,056.10 and 1,308.40

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Solution

The fourth proportional to 2,035.78, 3,056.10 and 1,308.40 is: 1,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,035.78 : 3,056.10 = 1,308.40 : x
  2. Step 2: Convert to fraction form
    2,035.78/3,056.10 = 1,308.40/x
  3. Step 3: Cross multiply
    2,035.78x = 3,056.10 × 1,308.40
  4. Step 4: Simplify right side
    2,035.78x = 3,998,601.24
  5. Step 5: Solve for x
    x = 3,998,601.24/2,035.78
  6. Step 6: Final answer
    x = 1,964.16

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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.