Home / 3,427.18-4,728.09-2,420.34

Finding the Fourth Proportional to 3,427.18, 4,728.09 and 2,420.34

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Solution

The fourth proportional to 3,427.18, 4,728.09 and 2,420.34 is: 3,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.18 : 4,728.09 = 2,420.34 : x
  2. Step 2: Convert to fraction form
    3,427.18/4,728.09 = 2,420.34/x
  3. Step 3: Cross multiply
    3,427.18x = 4,728.09 × 2,420.34
  4. Step 4: Simplify right side
    3,427.18x = 11,443,585.35
  5. Step 5: Solve for x
    x = 11,443,585.35/3,427.18
  6. Step 6: Final answer
    x = 3,339.07

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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.