Home / 1,916.88-2,877.99-1,330.47

Finding the Fourth Proportional to 1,916.88, 2,877.99 and 1,330.47

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Solution

The fourth proportional to 1,916.88, 2,877.99 and 1,330.47 is: 1,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.88 : 2,877.99 = 1,330.47 : x
  2. Step 2: Convert to fraction form
    1,916.88/2,877.99 = 1,330.47/x
  3. Step 3: Cross multiply
    1,916.88x = 2,877.99 × 1,330.47
  4. Step 4: Simplify right side
    1,916.88x = 3,829,079.36
  5. Step 5: Solve for x
    x = 3,829,079.36/1,916.88
  6. Step 6: Final answer
    x = 1,997.56

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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.