Home / 5,321.02-7,347.45-3,912.58

Finding the Fourth Proportional to 5,321.02, 7,347.45 and 3,912.58

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Solution

The fourth proportional to 5,321.02, 7,347.45 and 3,912.58 is: 5,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.02 : 7,347.45 = 3,912.58 : x
  2. Step 2: Convert to fraction form
    5,321.02/7,347.45 = 3,912.58/x
  3. Step 3: Cross multiply
    5,321.02x = 7,347.45 × 3,912.58
  4. Step 4: Simplify right side
    5,321.02x = 28,747,485.92
  5. Step 5: Solve for x
    x = 28,747,485.92/5,321.02
  6. Step 6: Final answer
    x = 5,402.63

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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.