Home / 4,688.70-7,028.55-2,712.30

Finding the Fourth Proportional to 4,688.70, 7,028.55 and 2,712.30

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Solution

The fourth proportional to 4,688.70, 7,028.55 and 2,712.30 is: 4,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,688.70 : 7,028.55 = 2,712.30 : x
  2. Step 2: Convert to fraction form
    4,688.70/7,028.55 = 2,712.30/x
  3. Step 3: Cross multiply
    4,688.70x = 7,028.55 × 2,712.30
  4. Step 4: Simplify right side
    4,688.70x = 19,063,536.17
  5. Step 5: Solve for x
    x = 19,063,536.17/4,688.70
  6. Step 6: Final answer
    x = 4,065.85

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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.