Home / 3,580.02-4,940.68-1,986.76

Finding the Fourth Proportional to 3,580.02, 4,940.68 and 1,986.76

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Solution

The fourth proportional to 3,580.02, 4,940.68 and 1,986.76 is: 2,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.02 : 4,940.68 = 1,986.76 : x
  2. Step 2: Convert to fraction form
    3,580.02/4,940.68 = 1,986.76/x
  3. Step 3: Cross multiply
    3,580.02x = 4,940.68 × 1,986.76
  4. Step 4: Simplify right side
    3,580.02x = 9,815,945.40
  5. Step 5: Solve for x
    x = 9,815,945.40/3,580.02
  6. Step 6: Final answer
    x = 2,741.87

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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.