Home / 1,815.76-2,717.16-1,693.72

Finding the Fourth Proportional to 1,815.76, 2,717.16 and 1,693.72

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Solution

The fourth proportional to 1,815.76, 2,717.16 and 1,693.72 is: 2,534.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.76 : 2,717.16 = 1,693.72 : x
  2. Step 2: Convert to fraction form
    1,815.76/2,717.16 = 1,693.72/x
  3. Step 3: Cross multiply
    1,815.76x = 2,717.16 × 1,693.72
  4. Step 4: Simplify right side
    1,815.76x = 4,602,108.24
  5. Step 5: Solve for x
    x = 4,602,108.24/1,815.76
  6. Step 6: Final answer
    x = 2,534.54

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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.