Home / 3,555.74-5,329.50-3,145.70

Finding the Fourth Proportional to 3,555.74, 5,329.50 and 3,145.70

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Solution

The fourth proportional to 3,555.74, 5,329.50 and 3,145.70 is: 4,714.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.74 : 5,329.50 = 3,145.70 : x
  2. Step 2: Convert to fraction form
    3,555.74/5,329.50 = 3,145.70/x
  3. Step 3: Cross multiply
    3,555.74x = 5,329.50 × 3,145.70
  4. Step 4: Simplify right side
    3,555.74x = 16,765,008.15
  5. Step 5: Solve for x
    x = 16,765,008.15/3,555.74
  6. Step 6: Final answer
    x = 4,714.91

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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.