Home / 5,222.85-7,827.79-2,587.52

Finding the Fourth Proportional to 5,222.85, 7,827.79 and 2,587.52

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Solution

The fourth proportional to 5,222.85, 7,827.79 and 2,587.52 is: 3,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.85 : 7,827.79 = 2,587.52 : x
  2. Step 2: Convert to fraction form
    5,222.85/7,827.79 = 2,587.52/x
  3. Step 3: Cross multiply
    5,222.85x = 7,827.79 × 2,587.52
  4. Step 4: Simplify right side
    5,222.85x = 20,254,563.18
  5. Step 5: Solve for x
    x = 20,254,563.18/5,222.85
  6. Step 6: Final answer
    x = 3,878.07

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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.