Home / 3,785.13-5,220.86-2,458.35

Finding the Fourth Proportional to 3,785.13, 5,220.86 and 2,458.35

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Solution

The fourth proportional to 3,785.13, 5,220.86 and 2,458.35 is: 3,390.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.13 : 5,220.86 = 2,458.35 : x
  2. Step 2: Convert to fraction form
    3,785.13/5,220.86 = 2,458.35/x
  3. Step 3: Cross multiply
    3,785.13x = 5,220.86 × 2,458.35
  4. Step 4: Simplify right side
    3,785.13x = 12,834,688.89
  5. Step 5: Solve for x
    x = 12,834,688.89/3,785.13
  6. Step 6: Final answer
    x = 3,390.82

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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.