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Finding the Fourth Proportional to 6,085.78, 9,128.61 and 1,925.78

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Solution

The fourth proportional to 6,085.78, 9,128.61 and 1,925.78 is: 2,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,085.78 : 9,128.61 = 1,925.78 : x
  2. Step 2: Convert to fraction form
    6,085.78/9,128.61 = 1,925.78/x
  3. Step 3: Cross multiply
    6,085.78x = 9,128.61 × 1,925.78
  4. Step 4: Simplify right side
    6,085.78x = 17,579,648.92
  5. Step 5: Solve for x
    x = 17,579,648.92/6,085.78
  6. Step 6: Final answer
    x = 2,888.64

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Similar ratio
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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.