Home / 4,913.12-6,777.88-2,922.54

Finding the Fourth Proportional to 4,913.12, 6,777.88 and 2,922.54

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Solution

The fourth proportional to 4,913.12, 6,777.88 and 2,922.54 is: 4,031.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.12 : 6,777.88 = 2,922.54 : x
  2. Step 2: Convert to fraction form
    4,913.12/6,777.88 = 2,922.54/x
  3. Step 3: Cross multiply
    4,913.12x = 6,777.88 × 2,922.54
  4. Step 4: Simplify right side
    4,913.12x = 19,808,625.42
  5. Step 5: Solve for x
    x = 19,808,625.42/4,913.12
  6. Step 6: Final answer
    x = 4,031.78

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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.