Home / 3,549.89-4,898.85-1,977.98

Finding the Fourth Proportional to 3,549.89, 4,898.85 and 1,977.98

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Solution

The fourth proportional to 3,549.89, 4,898.85 and 1,977.98 is: 2,729.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.89 : 4,898.85 = 1,977.98 : x
  2. Step 2: Convert to fraction form
    3,549.89/4,898.85 = 1,977.98/x
  3. Step 3: Cross multiply
    3,549.89x = 4,898.85 × 1,977.98
  4. Step 4: Simplify right side
    3,549.89x = 9,689,827.32
  5. Step 5: Solve for x
    x = 9,689,827.32/3,549.89
  6. Step 6: Final answer
    x = 2,729.61

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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.