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Finding the Fourth Proportional to 4,338.03, 6,507.90 and 1,415.55

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Solution

The fourth proportional to 4,338.03, 6,507.90 and 1,415.55 is: 2,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338.03 : 6,507.90 = 1,415.55 : x
  2. Step 2: Convert to fraction form
    4,338.03/6,507.90 = 1,415.55/x
  3. Step 3: Cross multiply
    4,338.03x = 6,507.90 × 1,415.55
  4. Step 4: Simplify right side
    4,338.03x = 9,212,257.85
  5. Step 5: Solve for x
    x = 9,212,257.85/4,338.03
  6. Step 6: Final answer
    x = 2,123.60

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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.