Home / 7,420.24-10,242.21-4,278.52

Finding the Fourth Proportional to 7,420.24, 10,242.21 and 4,278.52

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Solution

The fourth proportional to 7,420.24, 10,242.21 and 4,278.52 is: 5,905.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.24 : 10,242.21 = 4,278.52 : x
  2. Step 2: Convert to fraction form
    7,420.24/10,242.21 = 4,278.52/x
  3. Step 3: Cross multiply
    7,420.24x = 10,242.21 × 4,278.52
  4. Step 4: Simplify right side
    7,420.24x = 43,821,500.33
  5. Step 5: Solve for x
    x = 43,821,500.33/7,420.24
  6. Step 6: Final answer
    x = 5,905.67

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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.