Home / 5,380.02-7,430.27-4,199.31

Finding the Fourth Proportional to 5,380.02, 7,430.27 and 4,199.31

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Solution

The fourth proportional to 5,380.02, 7,430.27 and 4,199.31 is: 5,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.02 : 7,430.27 = 4,199.31 : x
  2. Step 2: Convert to fraction form
    5,380.02/7,430.27 = 4,199.31/x
  3. Step 3: Cross multiply
    5,380.02x = 7,430.27 × 4,199.31
  4. Step 4: Simplify right side
    5,380.02x = 31,201,986.12
  5. Step 5: Solve for x
    x = 31,201,986.12/5,380.02
  6. Step 6: Final answer
    x = 5,799.60

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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.