Home / 3,721.64-5,582.47-2,785.57

Finding the Fourth Proportional to 3,721.64, 5,582.47 and 2,785.57

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Solution

The fourth proportional to 3,721.64, 5,582.47 and 2,785.57 is: 4,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.64 : 5,582.47 = 2,785.57 : x
  2. Step 2: Convert to fraction form
    3,721.64/5,582.47 = 2,785.57/x
  3. Step 3: Cross multiply
    3,721.64x = 5,582.47 × 2,785.57
  4. Step 4: Simplify right side
    3,721.64x = 15,550,360.96
  5. Step 5: Solve for x
    x = 15,550,360.96/3,721.64
  6. Step 6: Final answer
    x = 4,178.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.