Home / 2,197.36-3,032.40-1,313.20

Finding the Fourth Proportional to 2,197.36, 3,032.40 and 1,313.20

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Solution

The fourth proportional to 2,197.36, 3,032.40 and 1,313.20 is: 1,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.36 : 3,032.40 = 1,313.20 : x
  2. Step 2: Convert to fraction form
    2,197.36/3,032.40 = 1,313.20/x
  3. Step 3: Cross multiply
    2,197.36x = 3,032.40 × 1,313.20
  4. Step 4: Simplify right side
    2,197.36x = 3,982,147.68
  5. Step 5: Solve for x
    x = 3,982,147.68/2,197.36
  6. Step 6: Final answer
    x = 1,812.24

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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.