Home / 2,820.77-4,230.07-1,665.17

Finding the Fourth Proportional to 2,820.77, 4,230.07 and 1,665.17

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Solution

The fourth proportional to 2,820.77, 4,230.07 and 1,665.17 is: 2,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.77 : 4,230.07 = 1,665.17 : x
  2. Step 2: Convert to fraction form
    2,820.77/4,230.07 = 1,665.17/x
  3. Step 3: Cross multiply
    2,820.77x = 4,230.07 × 1,665.17
  4. Step 4: Simplify right side
    2,820.77x = 7,043,760.35
  5. Step 5: Solve for x
    x = 7,043,760.35/2,820.77
  6. Step 6: Final answer
    x = 2,497.11

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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.