Home / 7,905.72-10,909.84-4,369.08

Finding the Fourth Proportional to 7,905.72, 10,909.84 and 4,369.08

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Solution

The fourth proportional to 7,905.72, 10,909.84 and 4,369.08 is: 6,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.72 : 10,909.84 = 4,369.08 : x
  2. Step 2: Convert to fraction form
    7,905.72/10,909.84 = 4,369.08/x
  3. Step 3: Cross multiply
    7,905.72x = 10,909.84 × 4,369.08
  4. Step 4: Simplify right side
    7,905.72x = 47,665,963.75
  5. Step 5: Solve for x
    x = 47,665,963.75/7,905.72
  6. Step 6: Final answer
    x = 6,029.30

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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.