Home / 3,525.62-5,290.35-1,986.74

Finding the Fourth Proportional to 3,525.62, 5,290.35 and 1,986.74

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Solution

The fourth proportional to 3,525.62, 5,290.35 and 1,986.74 is: 2,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.62 : 5,290.35 = 1,986.74 : x
  2. Step 2: Convert to fraction form
    3,525.62/5,290.35 = 1,986.74/x
  3. Step 3: Cross multiply
    3,525.62x = 5,290.35 × 1,986.74
  4. Step 4: Simplify right side
    3,525.62x = 10,510,549.96
  5. Step 5: Solve for x
    x = 10,510,549.96/3,525.62
  6. Step 6: Final answer
    x = 2,981.19

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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.