Home / 3,657.18-5,047.37-2,399.28

Finding the Fourth Proportional to 3,657.18, 5,047.37 and 2,399.28

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Solution

The fourth proportional to 3,657.18, 5,047.37 and 2,399.28 is: 3,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,657.18 : 5,047.37 = 2,399.28 : x
  2. Step 2: Convert to fraction form
    3,657.18/5,047.37 = 2,399.28/x
  3. Step 3: Cross multiply
    3,657.18x = 5,047.37 × 2,399.28
  4. Step 4: Simplify right side
    3,657.18x = 12,110,041.90
  5. Step 5: Solve for x
    x = 12,110,041.90/3,657.18
  6. Step 6: Final answer
    x = 3,311.31

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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.