Home / 4,871.90-6,722.52-2,775.98

Finding the Fourth Proportional to 4,871.90, 6,722.52 and 2,775.98

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Solution

The fourth proportional to 4,871.90, 6,722.52 and 2,775.98 is: 3,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.90 : 6,722.52 = 2,775.98 : x
  2. Step 2: Convert to fraction form
    4,871.90/6,722.52 = 2,775.98/x
  3. Step 3: Cross multiply
    4,871.90x = 6,722.52 × 2,775.98
  4. Step 4: Simplify right side
    4,871.90x = 18,661,581.07
  5. Step 5: Solve for x
    x = 18,661,581.07/4,871.90
  6. Step 6: Final answer
    x = 3,830.45

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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.