Home / 4,759.90-7,140.87-2,420.22

Finding the Fourth Proportional to 4,759.90, 7,140.87 and 2,420.22

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Solution

The fourth proportional to 4,759.90, 7,140.87 and 2,420.22 is: 3,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.90 : 7,140.87 = 2,420.22 : x
  2. Step 2: Convert to fraction form
    4,759.90/7,140.87 = 2,420.22/x
  3. Step 3: Cross multiply
    4,759.90x = 7,140.87 × 2,420.22
  4. Step 4: Simplify right side
    4,759.90x = 17,282,476.39
  5. Step 5: Solve for x
    x = 17,282,476.39/4,759.90
  6. Step 6: Final answer
    x = 3,630.85

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1.5x scale

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.