Home / 5,557.14-7,664.58-3,878.01

Finding the Fourth Proportional to 5,557.14, 7,664.58 and 3,878.01

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Solution

The fourth proportional to 5,557.14, 7,664.58 and 3,878.01 is: 5,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,557.14 : 7,664.58 = 3,878.01 : x
  2. Step 2: Convert to fraction form
    5,557.14/7,664.58 = 3,878.01/x
  3. Step 3: Cross multiply
    5,557.14x = 7,664.58 × 3,878.01
  4. Step 4: Simplify right side
    5,557.14x = 29,723,317.89
  5. Step 5: Solve for x
    x = 29,723,317.89/5,557.14
  6. Step 6: Final answer
    x = 5,348.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.