Home / 5,698.60-7,861.69-3,785.32

Finding the Fourth Proportional to 5,698.60, 7,861.69 and 3,785.32

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Solution

The fourth proportional to 5,698.60, 7,861.69 and 3,785.32 is: 5,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.60 : 7,861.69 = 3,785.32 : x
  2. Step 2: Convert to fraction form
    5,698.60/7,861.69 = 3,785.32/x
  3. Step 3: Cross multiply
    5,698.60x = 7,861.69 × 3,785.32
  4. Step 4: Simplify right side
    5,698.60x = 29,759,012.39
  5. Step 5: Solve for x
    x = 29,759,012.39/5,698.60
  6. Step 6: Final answer
    x = 5,222.16

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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.