Home / 3,417.79-5,125.60-1,108.75

Finding the Fourth Proportional to 3,417.79, 5,125.60 and 1,108.75

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Solution

The fourth proportional to 3,417.79, 5,125.60 and 1,108.75 is: 1,662.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417.79 : 5,125.60 = 1,108.75 : x
  2. Step 2: Convert to fraction form
    3,417.79/5,125.60 = 1,108.75/x
  3. Step 3: Cross multiply
    3,417.79x = 5,125.60 × 1,108.75
  4. Step 4: Simplify right side
    3,417.79x = 5,683,009
  5. Step 5: Solve for x
    x = 5,683,009/3,417.79
  6. Step 6: Final answer
    x = 1,662.77

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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.