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Finding the Fourth Proportional to 5,513.70, 8,254.35 and 4,865.70

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Solution

The fourth proportional to 5,513.70, 8,254.35 and 4,865.70 is: 7,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.70 : 8,254.35 = 4,865.70 : x
  2. Step 2: Convert to fraction form
    5,513.70/8,254.35 = 4,865.70/x
  3. Step 3: Cross multiply
    5,513.70x = 8,254.35 × 4,865.70
  4. Step 4: Simplify right side
    5,513.70x = 40,163,190.80
  5. Step 5: Solve for x
    x = 40,163,190.80/5,513.70
  6. Step 6: Final answer
    x = 7,284.25

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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.