Home / 3,549.24-4,897.71-1,977.39

Finding the Fourth Proportional to 3,549.24, 4,897.71 and 1,977.39

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Solution

The fourth proportional to 3,549.24, 4,897.71 and 1,977.39 is: 2,728.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.24 : 4,897.71 = 1,977.39 : x
  2. Step 2: Convert to fraction form
    3,549.24/4,897.71 = 1,977.39/x
  3. Step 3: Cross multiply
    3,549.24x = 4,897.71 × 1,977.39
  4. Step 4: Simplify right side
    3,549.24x = 9,684,682.78
  5. Step 5: Solve for x
    x = 9,684,682.78/3,549.24
  6. Step 6: Final answer
    x = 2,728.66

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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.