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Finding the Fourth Proportional to 5,612.34, 8,409.18 and 2,976.12

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Solution

The fourth proportional to 5,612.34, 8,409.18 and 2,976.12 is: 4,459.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.34 : 8,409.18 = 2,976.12 : x
  2. Step 2: Convert to fraction form
    5,612.34/8,409.18 = 2,976.12/x
  3. Step 3: Cross multiply
    5,612.34x = 8,409.18 × 2,976.12
  4. Step 4: Simplify right side
    5,612.34x = 25,026,728.78
  5. Step 5: Solve for x
    x = 25,026,728.78/5,612.34
  6. Step 6: Final answer
    x = 4,459.23

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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.