Home / 5,916.92-8,112.40-5,811.56

Finding the Fourth Proportional to 5,916.92, 8,112.40 and 5,811.56

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Solution

The fourth proportional to 5,916.92, 8,112.40 and 5,811.56 is: 7,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,916.92 : 8,112.40 = 5,811.56 : x
  2. Step 2: Convert to fraction form
    5,916.92/8,112.40 = 5,811.56/x
  3. Step 3: Cross multiply
    5,916.92x = 8,112.40 × 5,811.56
  4. Step 4: Simplify right side
    5,916.92x = 47,145,699.34
  5. Step 5: Solve for x
    x = 47,145,699.34/5,916.92
  6. Step 6: Final answer
    x = 7,967.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.