Home / 2,124.60-3,180.60-1,579.20

Finding the Fourth Proportional to 2,124.60, 3,180.60 and 1,579.20

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Solution

The fourth proportional to 2,124.60, 3,180.60 and 1,579.20 is: 2,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.60 : 3,180.60 = 1,579.20 : x
  2. Step 2: Convert to fraction form
    2,124.60/3,180.60 = 1,579.20/x
  3. Step 3: Cross multiply
    2,124.60x = 3,180.60 × 1,579.20
  4. Step 4: Simplify right side
    2,124.60x = 5,022,803.52
  5. Step 5: Solve for x
    x = 5,022,803.52/2,124.60
  6. Step 6: Final answer
    x = 2,364.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.