Home / 4,338.20-6,507.96-1,415.80

Finding the Fourth Proportional to 4,338.20, 6,507.96 and 1,415.80

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Solution

The fourth proportional to 4,338.20, 6,507.96 and 1,415.80 is: 2,123.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,338.20 : 6,507.96 = 1,415.80 : x
  2. Step 2: Convert to fraction form
    4,338.20/6,507.96 = 1,415.80/x
  3. Step 3: Cross multiply
    4,338.20x = 6,507.96 × 1,415.80
  4. Step 4: Simplify right side
    4,338.20x = 9,213,969.77
  5. Step 5: Solve for x
    x = 9,213,969.77/4,338.20
  6. Step 6: Final answer
    x = 2,123.92

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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.