Home / 3,840.50-5,298.10-2,247.20

Finding the Fourth Proportional to 3,840.50, 5,298.10 and 2,247.20

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Solution

The fourth proportional to 3,840.50, 5,298.10 and 2,247.20 is: 3,100.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.50 : 5,298.10 = 2,247.20 : x
  2. Step 2: Convert to fraction form
    3,840.50/5,298.10 = 2,247.20/x
  3. Step 3: Cross multiply
    3,840.50x = 5,298.10 × 2,247.20
  4. Step 4: Simplify right side
    3,840.50x = 11,905,890.32
  5. Step 5: Solve for x
    x = 11,905,890.32/3,840.50
  6. Step 6: Final answer
    x = 3,100.09

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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.