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Finding the Fourth Proportional to 6,681, 9,219.80 and 4,028.52

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Solution

The fourth proportional to 6,681, 9,219.80 and 4,028.52 is: 5,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681 : 9,219.80 = 4,028.52 : x
  2. Step 2: Convert to fraction form
    6,681/9,219.80 = 4,028.52/x
  3. Step 3: Cross multiply
    6,681x = 9,219.80 × 4,028.52
  4. Step 4: Simplify right side
    6,681x = 37,142,158.77
  5. Step 5: Solve for x
    x = 37,142,158.77/6,681
  6. Step 6: Final answer
    x = 5,559.37

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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.