Home / 2,313.38-3,192.47-1,265.45

Finding the Fourth Proportional to 2,313.38, 3,192.47 and 1,265.45

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Solution

The fourth proportional to 2,313.38, 3,192.47 and 1,265.45 is: 1,746.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.38 : 3,192.47 = 1,265.45 : x
  2. Step 2: Convert to fraction form
    2,313.38/3,192.47 = 1,265.45/x
  3. Step 3: Cross multiply
    2,313.38x = 3,192.47 × 1,265.45
  4. Step 4: Simplify right side
    2,313.38x = 4,039,888.87
  5. Step 5: Solve for x
    x = 4,039,888.87/2,313.38
  6. Step 6: Final answer
    x = 1,746.32

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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.