Home / 3,580.42-5,368.74-1,114.78

Finding the Fourth Proportional to 3,580.42, 5,368.74 and 1,114.78

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Solution

The fourth proportional to 3,580.42, 5,368.74 and 1,114.78 is: 1,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.42 : 5,368.74 = 1,114.78 : x
  2. Step 2: Convert to fraction form
    3,580.42/5,368.74 = 1,114.78/x
  3. Step 3: Cross multiply
    3,580.42x = 5,368.74 × 1,114.78
  4. Step 4: Simplify right side
    3,580.42x = 5,984,963.98
  5. Step 5: Solve for x
    x = 5,984,963.98/3,580.42
  6. Step 6: Final answer
    x = 1,671.58

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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.