Home / 1,815.18-2,726.40-1,557.30

Finding the Fourth Proportional to 1,815.18, 2,726.40 and 1,557.30

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Solution

The fourth proportional to 1,815.18, 2,726.40 and 1,557.30 is: 2,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.18 : 2,726.40 = 1,557.30 : x
  2. Step 2: Convert to fraction form
    1,815.18/2,726.40 = 1,557.30/x
  3. Step 3: Cross multiply
    1,815.18x = 2,726.40 × 1,557.30
  4. Step 4: Simplify right side
    1,815.18x = 4,245,822.72
  5. Step 5: Solve for x
    x = 4,245,822.72/1,815.18
  6. Step 6: Final answer
    x = 2,339.06

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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.