Home / 5,107.24-7,660.56-1,820.16

Finding the Fourth Proportional to 5,107.24, 7,660.56 and 1,820.16

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Solution

The fourth proportional to 5,107.24, 7,660.56 and 1,820.16 is: 2,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.24 : 7,660.56 = 1,820.16 : x
  2. Step 2: Convert to fraction form
    5,107.24/7,660.56 = 1,820.16/x
  3. Step 3: Cross multiply
    5,107.24x = 7,660.56 × 1,820.16
  4. Step 4: Simplify right side
    5,107.24x = 13,943,444.89
  5. Step 5: Solve for x
    x = 13,943,444.89/5,107.24
  6. Step 6: Final answer
    x = 2,730.13

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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.