Home / 6,580.28-9,870.39-2,141.63

Finding the Fourth Proportional to 6,580.28, 9,870.39 and 2,141.63

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Solution

The fourth proportional to 6,580.28, 9,870.39 and 2,141.63 is: 3,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,580.28 : 9,870.39 = 2,141.63 : x
  2. Step 2: Convert to fraction form
    6,580.28/9,870.39 = 2,141.63/x
  3. Step 3: Cross multiply
    6,580.28x = 9,870.39 × 2,141.63
  4. Step 4: Simplify right side
    6,580.28x = 21,138,723.34
  5. Step 5: Solve for x
    x = 21,138,723.34/6,580.28
  6. Step 6: Final answer
    x = 3,212.44

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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.