Home / 1,680.92-2,319.77-935.01

Finding the Fourth Proportional to 1,680.92, 2,319.77 and 935.01

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Solution

The fourth proportional to 1,680.92, 2,319.77 and 935.01 is: 1,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.92 : 2,319.77 = 935.01 : x
  2. Step 2: Convert to fraction form
    1,680.92/2,319.77 = 935.01/x
  3. Step 3: Cross multiply
    1,680.92x = 2,319.77 × 935.01
  4. Step 4: Simplify right side
    1,680.92x = 2,169,010.49
  5. Step 5: Solve for x
    x = 2,169,010.49/1,680.92
  6. Step 6: Final answer
    x = 1,290.37

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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.