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Finding the Fourth Proportional to 3,950.87, 5,451.72 and 2,357.60

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Solution

The fourth proportional to 3,950.87, 5,451.72 and 2,357.60 is: 3,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.87 : 5,451.72 = 2,357.60 : x
  2. Step 2: Convert to fraction form
    3,950.87/5,451.72 = 2,357.60/x
  3. Step 3: Cross multiply
    3,950.87x = 5,451.72 × 2,357.60
  4. Step 4: Simplify right side
    3,950.87x = 12,852,947.81
  5. Step 5: Solve for x
    x = 12,852,947.81/3,950.87
  6. Step 6: Final answer
    x = 3,253.20

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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.