Home / 2,420.34-3,339.92-1,358.25

Finding the Fourth Proportional to 2,420.34, 3,339.92 and 1,358.25

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Solution

The fourth proportional to 2,420.34, 3,339.92 and 1,358.25 is: 1,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.34 : 3,339.92 = 1,358.25 : x
  2. Step 2: Convert to fraction form
    2,420.34/3,339.92 = 1,358.25/x
  3. Step 3: Cross multiply
    2,420.34x = 3,339.92 × 1,358.25
  4. Step 4: Simplify right side
    2,420.34x = 4,536,449.74
  5. Step 5: Solve for x
    x = 4,536,449.74/2,420.34
  6. Step 6: Final answer
    x = 1,874.30

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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.