Home / 2,420.56-3,340.52-1,372.60

Finding the Fourth Proportional to 2,420.56, 3,340.52 and 1,372.60

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Solution

The fourth proportional to 2,420.56, 3,340.52 and 1,372.60 is: 1,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.56 : 3,340.52 = 1,372.60 : x
  2. Step 2: Convert to fraction form
    2,420.56/3,340.52 = 1,372.60/x
  3. Step 3: Cross multiply
    2,420.56x = 3,340.52 × 1,372.60
  4. Step 4: Simplify right side
    2,420.56x = 4,585,197.75
  5. Step 5: Solve for x
    x = 4,585,197.75/2,420.56
  6. Step 6: Final answer
    x = 1,894.27

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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.