Home / 1,916.29-2,873.92-529.30

Finding the Fourth Proportional to 1,916.29, 2,873.92 and 529.30

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Solution

The fourth proportional to 1,916.29, 2,873.92 and 529.30 is: 793.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.29 : 2,873.92 = 529.30 : x
  2. Step 2: Convert to fraction form
    1,916.29/2,873.92 = 529.30/x
  3. Step 3: Cross multiply
    1,916.29x = 2,873.92 × 529.30
  4. Step 4: Simplify right side
    1,916.29x = 1,521,165.86
  5. Step 5: Solve for x
    x = 1,521,165.86/1,916.29
  6. Step 6: Final answer
    x = 793.81

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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.