Home / 7,420.30-10,239.02-4,234.04

Finding the Fourth Proportional to 7,420.30, 10,239.02 and 4,234.04

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Solution

The fourth proportional to 7,420.30, 10,239.02 and 4,234.04 is: 5,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.30 : 10,239.02 = 4,234.04 : x
  2. Step 2: Convert to fraction form
    7,420.30/10,239.02 = 4,234.04/x
  3. Step 3: Cross multiply
    7,420.30x = 10,239.02 × 4,234.04
  4. Step 4: Simplify right side
    7,420.30x = 43,352,420.24
  5. Step 5: Solve for x
    x = 43,352,420.24/7,420.30
  6. Step 6: Final answer
    x = 5,842.41

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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.