Home / 5,107.16-7,659.78-1,820.24

Finding the Fourth Proportional to 5,107.16, 7,659.78 and 1,820.24

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Solution

The fourth proportional to 5,107.16, 7,659.78 and 1,820.24 is: 2,730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.16 : 7,659.78 = 1,820.24 : x
  2. Step 2: Convert to fraction form
    5,107.16/7,659.78 = 1,820.24/x
  3. Step 3: Cross multiply
    5,107.16x = 7,659.78 × 1,820.24
  4. Step 4: Simplify right side
    5,107.16x = 13,942,637.95
  5. Step 5: Solve for x
    x = 13,942,637.95/5,107.16
  6. Step 6: Final answer
    x = 2,730.02

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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.