Home / 3,708.70-5,558.55-2,145.70

Finding the Fourth Proportional to 3,708.70, 5,558.55 and 2,145.70

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Solution

The fourth proportional to 3,708.70, 5,558.55 and 2,145.70 is: 3,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.70 : 5,558.55 = 2,145.70 : x
  2. Step 2: Convert to fraction form
    3,708.70/5,558.55 = 2,145.70/x
  3. Step 3: Cross multiply
    3,708.70x = 5,558.55 × 2,145.70
  4. Step 4: Simplify right side
    3,708.70x = 11,926,980.74
  5. Step 5: Solve for x
    x = 11,926,980.74/3,708.70
  6. Step 6: Final answer
    x = 3,215.95

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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.