Home / 5,108.37-7,048.82-2,870.13

Finding the Fourth Proportional to 5,108.37, 7,048.82 and 2,870.13

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Solution

The fourth proportional to 5,108.37, 7,048.82 and 2,870.13 is: 3,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.37 : 7,048.82 = 2,870.13 : x
  2. Step 2: Convert to fraction form
    5,108.37/7,048.82 = 2,870.13/x
  3. Step 3: Cross multiply
    5,108.37x = 7,048.82 × 2,870.13
  4. Step 4: Simplify right side
    5,108.37x = 20,231,063.36
  5. Step 5: Solve for x
    x = 20,231,063.36/5,108.37
  6. Step 6: Final answer
    x = 3,960.38

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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.