Home / 5,151.63-7,108.95-3,161.77

Finding the Fourth Proportional to 5,151.63, 7,108.95 and 3,161.77

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Solution

The fourth proportional to 5,151.63, 7,108.95 and 3,161.77 is: 4,363.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.63 : 7,108.95 = 3,161.77 : x
  2. Step 2: Convert to fraction form
    5,151.63/7,108.95 = 3,161.77/x
  3. Step 3: Cross multiply
    5,151.63x = 7,108.95 × 3,161.77
  4. Step 4: Simplify right side
    5,151.63x = 22,476,864.84
  5. Step 5: Solve for x
    x = 22,476,864.84/5,151.63
  6. Step 6: Final answer
    x = 4,363.06

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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.