Home / 5,380.02-7,421.44-4,999.47

Finding the Fourth Proportional to 5,380.02, 7,421.44 and 4,999.47

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Solution

The fourth proportional to 5,380.02, 7,421.44 and 4,999.47 is: 6,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.02 : 7,421.44 = 4,999.47 : x
  2. Step 2: Convert to fraction form
    5,380.02/7,421.44 = 4,999.47/x
  3. Step 3: Cross multiply
    5,380.02x = 7,421.44 × 4,999.47
  4. Step 4: Simplify right side
    5,380.02x = 37,103,277.43
  5. Step 5: Solve for x
    x = 37,103,277.43/5,380.02
  6. Step 6: Final answer
    x = 6,896.49

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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.