Home / 3,479.55-5,219.36-2,785.31

Finding the Fourth Proportional to 3,479.55, 5,219.36 and 2,785.31

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Solution

The fourth proportional to 3,479.55, 5,219.36 and 2,785.31 is: 4,177.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.55 : 5,219.36 = 2,785.31 : x
  2. Step 2: Convert to fraction form
    3,479.55/5,219.36 = 2,785.31/x
  3. Step 3: Cross multiply
    3,479.55x = 5,219.36 × 2,785.31
  4. Step 4: Simplify right side
    3,479.55x = 14,537,495.58
  5. Step 5: Solve for x
    x = 14,537,495.58/3,479.55
  6. Step 6: Final answer
    x = 4,177.98

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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.