Home / 5,347.15-7,377.89-3,107.87

Finding the Fourth Proportional to 5,347.15, 7,377.89 and 3,107.87

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Solution

The fourth proportional to 5,347.15, 7,377.89 and 3,107.87 is: 4,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.15 : 7,377.89 = 3,107.87 : x
  2. Step 2: Convert to fraction form
    5,347.15/7,377.89 = 3,107.87/x
  3. Step 3: Cross multiply
    5,347.15x = 7,377.89 × 3,107.87
  4. Step 4: Simplify right side
    5,347.15x = 22,929,498.23
  5. Step 5: Solve for x
    x = 22,929,498.23/5,347.15
  6. Step 6: Final answer
    x = 4,288.17

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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.