Home / 1,945.10-2,916.58-1,329.50

Finding the Fourth Proportional to 1,945.10, 2,916.58 and 1,329.50

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Solution

The fourth proportional to 1,945.10, 2,916.58 and 1,329.50 is: 1,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.10 : 2,916.58 = 1,329.50 : x
  2. Step 2: Convert to fraction form
    1,945.10/2,916.58 = 1,329.50/x
  3. Step 3: Cross multiply
    1,945.10x = 2,916.58 × 1,329.50
  4. Step 4: Simplify right side
    1,945.10x = 3,877,593.11
  5. Step 5: Solve for x
    x = 3,877,593.11/1,945.10
  6. Step 6: Final answer
    x = 1,993.52

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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.