Home / 3,615.78-4,989.57-2,043.77

Finding the Fourth Proportional to 3,615.78, 4,989.57 and 2,043.77

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Solution

The fourth proportional to 3,615.78, 4,989.57 and 2,043.77 is: 2,820.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.78 : 4,989.57 = 2,043.77 : x
  2. Step 2: Convert to fraction form
    3,615.78/4,989.57 = 2,043.77/x
  3. Step 3: Cross multiply
    3,615.78x = 4,989.57 × 2,043.77
  4. Step 4: Simplify right side
    3,615.78x = 10,197,533.48
  5. Step 5: Solve for x
    x = 10,197,533.48/3,615.78
  6. Step 6: Final answer
    x = 2,820.29

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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.