Home / 1,767.58-2,438.20-1,137.90

Finding the Fourth Proportional to 1,767.58, 2,438.20 and 1,137.90

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Solution

The fourth proportional to 1,767.58, 2,438.20 and 1,137.90 is: 1,569.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.58 : 2,438.20 = 1,137.90 : x
  2. Step 2: Convert to fraction form
    1,767.58/2,438.20 = 1,137.90/x
  3. Step 3: Cross multiply
    1,767.58x = 2,438.20 × 1,137.90
  4. Step 4: Simplify right side
    1,767.58x = 2,774,427.78
  5. Step 5: Solve for x
    x = 2,774,427.78/1,767.58
  6. Step 6: Final answer
    x = 1,569.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.