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Finding the Fourth Proportional to 5,715.87, 7,888.05 and 3,357.54

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Solution

The fourth proportional to 5,715.87, 7,888.05 and 3,357.54 is: 4,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.87 : 7,888.05 = 3,357.54 : x
  2. Step 2: Convert to fraction form
    5,715.87/7,888.05 = 3,357.54/x
  3. Step 3: Cross multiply
    5,715.87x = 7,888.05 × 3,357.54
  4. Step 4: Simplify right side
    5,715.87x = 26,484,443.40
  5. Step 5: Solve for x
    x = 26,484,443.40/5,715.87
  6. Step 6: Final answer
    x = 4,633.49

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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.