Home / 3,570.90-4,927.85-1,998.99

Finding the Fourth Proportional to 3,570.90, 4,927.85 and 1,998.99

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Solution

The fourth proportional to 3,570.90, 4,927.85 and 1,998.99 is: 2,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.90 : 4,927.85 = 1,998.99 : x
  2. Step 2: Convert to fraction form
    3,570.90/4,927.85 = 1,998.99/x
  3. Step 3: Cross multiply
    3,570.90x = 4,927.85 × 1,998.99
  4. Step 4: Simplify right side
    3,570.90x = 9,850,712.88
  5. Step 5: Solve for x
    x = 9,850,712.88/3,570.90
  6. Step 6: Final answer
    x = 2,758.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.