Home / 4,775.18-7,127.87-4,423.43

Finding the Fourth Proportional to 4,775.18, 7,127.87 and 4,423.43

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Solution

The fourth proportional to 4,775.18, 7,127.87 and 4,423.43 is: 6,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,775.18 : 7,127.87 = 4,423.43 : x
  2. Step 2: Convert to fraction form
    4,775.18/7,127.87 = 4,423.43/x
  3. Step 3: Cross multiply
    4,775.18x = 7,127.87 × 4,423.43
  4. Step 4: Simplify right side
    4,775.18x = 31,529,629.70
  5. Step 5: Solve for x
    x = 31,529,629.70/4,775.18
  6. Step 6: Final answer
    x = 6,602.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.