Home / 4,815.51-6,643.40-3,240.87

Finding the Fourth Proportional to 4,815.51, 6,643.40 and 3,240.87

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Solution

The fourth proportional to 4,815.51, 6,643.40 and 3,240.87 is: 4,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.51 : 6,643.40 = 3,240.87 : x
  2. Step 2: Convert to fraction form
    4,815.51/6,643.40 = 3,240.87/x
  3. Step 3: Cross multiply
    4,815.51x = 6,643.40 × 3,240.87
  4. Step 4: Simplify right side
    4,815.51x = 21,530,379.55
  5. Step 5: Solve for x
    x = 21,530,379.55/4,815.51
  6. Step 6: Final answer
    x = 4,471.05

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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.