Home / 1,815.89-2,721.40-1,036.13

Finding the Fourth Proportional to 1,815.89, 2,721.40 and 1,036.13

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Solution

The fourth proportional to 1,815.89, 2,721.40 and 1,036.13 is: 1,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.89 : 2,721.40 = 1,036.13 : x
  2. Step 2: Convert to fraction form
    1,815.89/2,721.40 = 1,036.13/x
  3. Step 3: Cross multiply
    1,815.89x = 2,721.40 × 1,036.13
  4. Step 4: Simplify right side
    1,815.89x = 2,819,707.98
  5. Step 5: Solve for x
    x = 2,819,707.98/1,815.89
  6. Step 6: Final answer
    x = 1,552.80

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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.