Home / 2,190.42-3,022.65-1,246.08

Finding the Fourth Proportional to 2,190.42, 3,022.65 and 1,246.08

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Solution

The fourth proportional to 2,190.42, 3,022.65 and 1,246.08 is: 1,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.42 : 3,022.65 = 1,246.08 : x
  2. Step 2: Convert to fraction form
    2,190.42/3,022.65 = 1,246.08/x
  3. Step 3: Cross multiply
    2,190.42x = 3,022.65 × 1,246.08
  4. Step 4: Simplify right side
    2,190.42x = 3,766,463.71
  5. Step 5: Solve for x
    x = 3,766,463.71/2,190.42
  6. Step 6: Final answer
    x = 1,719.52

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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.