Home / 5,255.81-7,883.70-1,557.75

Finding the Fourth Proportional to 5,255.81, 7,883.70 and 1,557.75

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Solution

The fourth proportional to 5,255.81, 7,883.70 and 1,557.75 is: 2,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.81 : 7,883.70 = 1,557.75 : x
  2. Step 2: Convert to fraction form
    5,255.81/7,883.70 = 1,557.75/x
  3. Step 3: Cross multiply
    5,255.81x = 7,883.70 × 1,557.75
  4. Step 4: Simplify right side
    5,255.81x = 12,280,833.68
  5. Step 5: Solve for x
    x = 12,280,833.68/5,255.81
  6. Step 6: Final answer
    x = 2,336.62

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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.