Home / 1,786.92-2,680.14-555.18

Finding the Fourth Proportional to 1,786.92, 2,680.14 and 555.18

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Solution

The fourth proportional to 1,786.92, 2,680.14 and 555.18 is: 832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.92 : 2,680.14 = 555.18 : x
  2. Step 2: Convert to fraction form
    1,786.92/2,680.14 = 555.18/x
  3. Step 3: Cross multiply
    1,786.92x = 2,680.14 × 555.18
  4. Step 4: Simplify right side
    1,786.92x = 1,487,960.13
  5. Step 5: Solve for x
    x = 1,487,960.13/1,786.92
  6. Step 6: Final answer
    x = 832.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.