Home / 6,947.68-10,420.40-2,567.20

Finding the Fourth Proportional to 6,947.68, 10,420.40 and 2,567.20

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Solution

The fourth proportional to 6,947.68, 10,420.40 and 2,567.20 is: 3,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.68 : 10,420.40 = 2,567.20 : x
  2. Step 2: Convert to fraction form
    6,947.68/10,420.40 = 2,567.20/x
  3. Step 3: Cross multiply
    6,947.68x = 10,420.40 × 2,567.20
  4. Step 4: Simplify right side
    6,947.68x = 26,751,250.88
  5. Step 5: Solve for x
    x = 26,751,250.88/6,947.68
  6. Step 6: Final answer
    x = 3,850.39

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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.