Home / 4,947.55-7,427.40-4,911.10

Finding the Fourth Proportional to 4,947.55, 7,427.40 and 4,911.10

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Solution

The fourth proportional to 4,947.55, 7,427.40 and 4,911.10 is: 7,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.55 : 7,427.40 = 4,911.10 : x
  2. Step 2: Convert to fraction form
    4,947.55/7,427.40 = 4,911.10/x
  3. Step 3: Cross multiply
    4,947.55x = 7,427.40 × 4,911.10
  4. Step 4: Simplify right side
    4,947.55x = 36,476,704.14
  5. Step 5: Solve for x
    x = 36,476,704.14/4,947.55
  6. Step 6: Final answer
    x = 7,372.68

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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.