Home / 2,313.49-3,193.29-1,319.32

Finding the Fourth Proportional to 2,313.49, 3,193.29 and 1,319.32

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Solution

The fourth proportional to 2,313.49, 3,193.29 and 1,319.32 is: 1,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.49 : 3,193.29 = 1,319.32 : x
  2. Step 2: Convert to fraction form
    2,313.49/3,193.29 = 1,319.32/x
  3. Step 3: Cross multiply
    2,313.49x = 3,193.29 × 1,319.32
  4. Step 4: Simplify right side
    2,313.49x = 4,212,971.36
  5. Step 5: Solve for x
    x = 4,212,971.36/2,313.49
  6. Step 6: Final answer
    x = 1,821.05

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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.