Home / 3,487.47-4,808.97-2,777.91

Finding the Fourth Proportional to 3,487.47, 4,808.97 and 2,777.91

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Solution

The fourth proportional to 3,487.47, 4,808.97 and 2,777.91 is: 3,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.47 : 4,808.97 = 2,777.91 : x
  2. Step 2: Convert to fraction form
    3,487.47/4,808.97 = 2,777.91/x
  3. Step 3: Cross multiply
    3,487.47x = 4,808.97 × 2,777.91
  4. Step 4: Simplify right side
    3,487.47x = 13,358,885.85
  5. Step 5: Solve for x
    x = 13,358,885.85/3,487.47
  6. Step 6: Final answer
    x = 3,830.54

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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.