Home / 2,130.60-2,940.22-1,246.23

Finding the Fourth Proportional to 2,130.60, 2,940.22 and 1,246.23

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Solution

The fourth proportional to 2,130.60, 2,940.22 and 1,246.23 is: 1,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.60 : 2,940.22 = 1,246.23 : x
  2. Step 2: Convert to fraction form
    2,130.60/2,940.22 = 1,246.23/x
  3. Step 3: Cross multiply
    2,130.60x = 2,940.22 × 1,246.23
  4. Step 4: Simplify right side
    2,130.60x = 3,664,183.02
  5. Step 5: Solve for x
    x = 3,664,183.02/2,130.60
  6. Step 6: Final answer
    x = 1,719.79

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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.