Home / 5,125.17-7,688.83-2,905.06

Finding the Fourth Proportional to 5,125.17, 7,688.83 and 2,905.06

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Solution

The fourth proportional to 5,125.17, 7,688.83 and 2,905.06 is: 4,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.17 : 7,688.83 = 2,905.06 : x
  2. Step 2: Convert to fraction form
    5,125.17/7,688.83 = 2,905.06/x
  3. Step 3: Cross multiply
    5,125.17x = 7,688.83 × 2,905.06
  4. Step 4: Simplify right side
    5,125.17x = 22,336,497.69
  5. Step 5: Solve for x
    x = 22,336,497.69/5,125.17
  6. Step 6: Final answer
    x = 4,358.20

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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.