Home / 2,089.30-3,115.50-2,070.55

Finding the Fourth Proportional to 2,089.30, 3,115.50 and 2,070.55

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Solution

The fourth proportional to 2,089.30, 3,115.50 and 2,070.55 is: 3,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.30 : 3,115.50 = 2,070.55 : x
  2. Step 2: Convert to fraction form
    2,089.30/3,115.50 = 2,070.55/x
  3. Step 3: Cross multiply
    2,089.30x = 3,115.50 × 2,070.55
  4. Step 4: Simplify right side
    2,089.30x = 6,450,782.95
  5. Step 5: Solve for x
    x = 6,450,782.95/2,089.30
  6. Step 6: Final answer
    x = 3,087.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.