Home / 4,916.16-6,783.48-3,147.39

Finding the Fourth Proportional to 4,916.16, 6,783.48 and 3,147.39

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Solution

The fourth proportional to 4,916.16, 6,783.48 and 3,147.39 is: 4,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,916.16 : 6,783.48 = 3,147.39 : x
  2. Step 2: Convert to fraction form
    4,916.16/6,783.48 = 3,147.39/x
  3. Step 3: Cross multiply
    4,916.16x = 6,783.48 × 3,147.39
  4. Step 4: Simplify right side
    4,916.16x = 21,350,257.12
  5. Step 5: Solve for x
    x = 21,350,257.12/4,916.16
  6. Step 6: Final answer
    x = 4,342.87

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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.