Home / 2,977.29-4,110.52-1,916.90

Finding the Fourth Proportional to 2,977.29, 4,110.52 and 1,916.90

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Solution

The fourth proportional to 2,977.29, 4,110.52 and 1,916.90 is: 2,646.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.29 : 4,110.52 = 1,916.90 : x
  2. Step 2: Convert to fraction form
    2,977.29/4,110.52 = 1,916.90/x
  3. Step 3: Cross multiply
    2,977.29x = 4,110.52 × 1,916.90
  4. Step 4: Simplify right side
    2,977.29x = 7,879,435.24
  5. Step 5: Solve for x
    x = 7,879,435.24/2,977.29
  6. Step 6: Final answer
    x = 2,646.52

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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.