Home / 5,813.40-8,719.62-1,916.76

Finding the Fourth Proportional to 5,813.40, 8,719.62 and 1,916.76

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Solution

The fourth proportional to 5,813.40, 8,719.62 and 1,916.76 is: 2,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.40 : 8,719.62 = 1,916.76 : x
  2. Step 2: Convert to fraction form
    5,813.40/8,719.62 = 1,916.76/x
  3. Step 3: Cross multiply
    5,813.40x = 8,719.62 × 1,916.76
  4. Step 4: Simplify right side
    5,813.40x = 16,713,418.83
  5. Step 5: Solve for x
    x = 16,713,418.83/5,813.40
  6. Step 6: Final answer
    x = 2,874.98

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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.