Home / 1,399.80-2,097.63-1,246.02

Finding the Fourth Proportional to 1,399.80, 2,097.63 and 1,246.02

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Solution

The fourth proportional to 1,399.80, 2,097.63 and 1,246.02 is: 1,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399.80 : 2,097.63 = 1,246.02 : x
  2. Step 2: Convert to fraction form
    1,399.80/2,097.63 = 1,246.02/x
  3. Step 3: Cross multiply
    1,399.80x = 2,097.63 × 1,246.02
  4. Step 4: Simplify right side
    1,399.80x = 2,613,688.93
  5. Step 5: Solve for x
    x = 2,613,688.93/1,399.80
  6. Step 6: Final answer
    x = 1,867.19

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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.