Home / 3,549.86-4,898.81-1,977.96

Finding the Fourth Proportional to 3,549.86, 4,898.81 and 1,977.96

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Solution

The fourth proportional to 3,549.86, 4,898.81 and 1,977.96 is: 2,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.86 : 4,898.81 = 1,977.96 : x
  2. Step 2: Convert to fraction form
    3,549.86/4,898.81 = 1,977.96/x
  3. Step 3: Cross multiply
    3,549.86x = 4,898.81 × 1,977.96
  4. Step 4: Simplify right side
    3,549.86x = 9,689,650.23
  5. Step 5: Solve for x
    x = 9,689,650.23/3,549.86
  6. Step 6: Final answer
    x = 2,729.59

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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.