Home / 2,313.19-3,197.37-1,729.18

Finding the Fourth Proportional to 2,313.19, 3,197.37 and 1,729.18

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Solution

The fourth proportional to 2,313.19, 3,197.37 and 1,729.18 is: 2,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.19 : 3,197.37 = 1,729.18 : x
  2. Step 2: Convert to fraction form
    2,313.19/3,197.37 = 1,729.18/x
  3. Step 3: Cross multiply
    2,313.19x = 3,197.37 × 1,729.18
  4. Step 4: Simplify right side
    2,313.19x = 5,528,828.26
  5. Step 5: Solve for x
    x = 5,528,828.26/2,313.19
  6. Step 6: Final answer
    x = 2,390.13

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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.