Home / 6,074.78-9,111.45-2,125.40

Finding the Fourth Proportional to 6,074.78, 9,111.45 and 2,125.40

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Solution

The fourth proportional to 6,074.78, 9,111.45 and 2,125.40 is: 3,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,074.78 : 9,111.45 = 2,125.40 : x
  2. Step 2: Convert to fraction form
    6,074.78/9,111.45 = 2,125.40/x
  3. Step 3: Cross multiply
    6,074.78x = 9,111.45 × 2,125.40
  4. Step 4: Simplify right side
    6,074.78x = 19,365,475.83
  5. Step 5: Solve for x
    x = 19,365,475.83/6,074.78
  6. Step 6: Final answer
    x = 3,187.85

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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.