Home / 2,313.75-3,193.12-1,429.10

Finding the Fourth Proportional to 2,313.75, 3,193.12 and 1,429.10

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Solution

The fourth proportional to 2,313.75, 3,193.12 and 1,429.10 is: 1,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.75 : 3,193.12 = 1,429.10 : x
  2. Step 2: Convert to fraction form
    2,313.75/3,193.12 = 1,429.10/x
  3. Step 3: Cross multiply
    2,313.75x = 3,193.12 × 1,429.10
  4. Step 4: Simplify right side
    2,313.75x = 4,563,287.79
  5. Step 5: Solve for x
    x = 4,563,287.79/2,313.75
  6. Step 6: Final answer
    x = 1,972.25

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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.