Home / 3,134.79-4,328.89-2,017.69

Finding the Fourth Proportional to 3,134.79, 4,328.89 and 2,017.69

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Solution

The fourth proportional to 3,134.79, 4,328.89 and 2,017.69 is: 2,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.79 : 4,328.89 = 2,017.69 : x
  2. Step 2: Convert to fraction form
    3,134.79/4,328.89 = 2,017.69/x
  3. Step 3: Cross multiply
    3,134.79x = 4,328.89 × 2,017.69
  4. Step 4: Simplify right side
    3,134.79x = 8,734,342.20
  5. Step 5: Solve for x
    x = 8,734,342.20/3,134.79
  6. Step 6: Final answer
    x = 2,786.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.