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Finding the Fourth Proportional to 3,518.02, 5,276.67 and 920.96

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Solution

The fourth proportional to 3,518.02, 5,276.67 and 920.96 is: 1,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.02 : 5,276.67 = 920.96 : x
  2. Step 2: Convert to fraction form
    3,518.02/5,276.67 = 920.96/x
  3. Step 3: Cross multiply
    3,518.02x = 5,276.67 × 920.96
  4. Step 4: Simplify right side
    3,518.02x = 4,859,602.00
  5. Step 5: Solve for x
    x = 4,859,602.00/3,518.02
  6. Step 6: Final answer
    x = 1,381.35

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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.