Home / 3,705.50-5,559.36-2,145.14

Finding the Fourth Proportional to 3,705.50, 5,559.36 and 2,145.14

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Solution

The fourth proportional to 3,705.50, 5,559.36 and 2,145.14 is: 3,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.50 : 5,559.36 = 2,145.14 : x
  2. Step 2: Convert to fraction form
    3,705.50/5,559.36 = 2,145.14/x
  3. Step 3: Cross multiply
    3,705.50x = 5,559.36 × 2,145.14
  4. Step 4: Simplify right side
    3,705.50x = 11,925,605.51
  5. Step 5: Solve for x
    x = 11,925,605.51/3,705.50
  6. Step 6: Final answer
    x = 3,218.35

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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.