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Finding the Fourth Proportional to 3,368.59, 5,053.19 and 1,520.57

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Solution

The fourth proportional to 3,368.59, 5,053.19 and 1,520.57 is: 2,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.59 : 5,053.19 = 1,520.57 : x
  2. Step 2: Convert to fraction form
    3,368.59/5,053.19 = 1,520.57/x
  3. Step 3: Cross multiply
    3,368.59x = 5,053.19 × 1,520.57
  4. Step 4: Simplify right side
    3,368.59x = 7,683,734.15
  5. Step 5: Solve for x
    x = 7,683,734.15/3,368.59
  6. Step 6: Final answer
    x = 2,281.00

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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.