Home / 1,783.30-2,460.90-986.57

Finding the Fourth Proportional to 1,783.30, 2,460.90 and 986.57

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Solution

The fourth proportional to 1,783.30, 2,460.90 and 986.57 is: 1,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.30 : 2,460.90 = 986.57 : x
  2. Step 2: Convert to fraction form
    1,783.30/2,460.90 = 986.57/x
  3. Step 3: Cross multiply
    1,783.30x = 2,460.90 × 986.57
  4. Step 4: Simplify right side
    1,783.30x = 2,427,856.95
  5. Step 5: Solve for x
    x = 2,427,856.95/1,783.30
  6. Step 6: Final answer
    x = 1,361.44

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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.