Home / 4,778.07-7,156.64-3,387.18

Finding the Fourth Proportional to 4,778.07, 7,156.64 and 3,387.18

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Solution

The fourth proportional to 4,778.07, 7,156.64 and 3,387.18 is: 5,073.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.07 : 7,156.64 = 3,387.18 : x
  2. Step 2: Convert to fraction form
    4,778.07/7,156.64 = 3,387.18/x
  3. Step 3: Cross multiply
    4,778.07x = 7,156.64 × 3,387.18
  4. Step 4: Simplify right side
    4,778.07x = 24,240,827.88
  5. Step 5: Solve for x
    x = 24,240,827.88/4,778.07
  6. Step 6: Final answer
    x = 5,073.35

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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.