Home / 2,420.02-3,339.93-1,372.42

Finding the Fourth Proportional to 2,420.02, 3,339.93 and 1,372.42

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Solution

The fourth proportional to 2,420.02, 3,339.93 and 1,372.42 is: 1,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.02 : 3,339.93 = 1,372.42 : x
  2. Step 2: Convert to fraction form
    2,420.02/3,339.93 = 1,372.42/x
  3. Step 3: Cross multiply
    2,420.02x = 3,339.93 × 1,372.42
  4. Step 4: Simplify right side
    2,420.02x = 4,583,786.73
  5. Step 5: Solve for x
    x = 4,583,786.73/2,420.02
  6. Step 6: Final answer
    x = 1,894.11

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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.