Home / 2,439.60-3,363-1,775.40

Finding the Fourth Proportional to 2,439.60, 3,363 and 1,775.40

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Solution

The fourth proportional to 2,439.60, 3,363 and 1,775.40 is: 2,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.60 : 3,363 = 1,775.40 : x
  2. Step 2: Convert to fraction form
    2,439.60/3,363 = 1,775.40/x
  3. Step 3: Cross multiply
    2,439.60x = 3,363 × 1,775.40
  4. Step 4: Simplify right side
    2,439.60x = 5,970,670.20
  5. Step 5: Solve for x
    x = 5,970,670.20/2,439.60
  6. Step 6: Final answer
    x = 2,447.40

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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.