Home / 7,427.78-10,250.30-4,070.59

Finding the Fourth Proportional to 7,427.78, 10,250.30 and 4,070.59

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Solution

The fourth proportional to 7,427.78, 10,250.30 and 4,070.59 is: 5,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.78 : 10,250.30 = 4,070.59 : x
  2. Step 2: Convert to fraction form
    7,427.78/10,250.30 = 4,070.59/x
  3. Step 3: Cross multiply
    7,427.78x = 10,250.30 × 4,070.59
  4. Step 4: Simplify right side
    7,427.78x = 41,724,768.68
  5. Step 5: Solve for x
    x = 41,724,768.68/7,427.78
  6. Step 6: Final answer
    x = 5,617.39

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1.5x scale

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.