Home / 4,207.84-5,805.75-2,810.86

Finding the Fourth Proportional to 4,207.84, 5,805.75 and 2,810.86

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Solution

The fourth proportional to 4,207.84, 5,805.75 and 2,810.86 is: 3,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,207.84 : 5,805.75 = 2,810.86 : x
  2. Step 2: Convert to fraction form
    4,207.84/5,805.75 = 2,810.86/x
  3. Step 3: Cross multiply
    4,207.84x = 5,805.75 × 2,810.86
  4. Step 4: Simplify right side
    4,207.84x = 16,319,150.45
  5. Step 5: Solve for x
    x = 16,319,150.45/4,207.84
  6. Step 6: Final answer
    x = 3,878.27

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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.