Home / 3,411.51-5,117.93-1,331.43

Finding the Fourth Proportional to 3,411.51, 5,117.93 and 1,331.43

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Solution

The fourth proportional to 3,411.51, 5,117.93 and 1,331.43 is: 1,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.51 : 5,117.93 = 1,331.43 : x
  2. Step 2: Convert to fraction form
    3,411.51/5,117.93 = 1,331.43/x
  3. Step 3: Cross multiply
    3,411.51x = 5,117.93 × 1,331.43
  4. Step 4: Simplify right side
    3,411.51x = 6,814,158.88
  5. Step 5: Solve for x
    x = 6,814,158.88/3,411.51
  6. Step 6: Final answer
    x = 1,997.40

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1.5x scale

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.