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Finding the Fourth Proportional to 3,585.70, 5,378.80 and 1,503.62

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Solution

The fourth proportional to 3,585.70, 5,378.80 and 1,503.62 is: 2,255.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.70 : 5,378.80 = 1,503.62 : x
  2. Step 2: Convert to fraction form
    3,585.70/5,378.80 = 1,503.62/x
  3. Step 3: Cross multiply
    3,585.70x = 5,378.80 × 1,503.62
  4. Step 4: Simplify right side
    3,585.70x = 8,087,640.60
  5. Step 5: Solve for x
    x = 8,087,640.60/3,585.70
  6. Step 6: Final answer
    x = 2,255.53

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1.5x scale

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.