Home / 5,660.64-7,809.54-4,172.12

Finding the Fourth Proportional to 5,660.64, 7,809.54 and 4,172.12

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Solution

The fourth proportional to 5,660.64, 7,809.54 and 4,172.12 is: 5,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660.64 : 7,809.54 = 4,172.12 : x
  2. Step 2: Convert to fraction form
    5,660.64/7,809.54 = 4,172.12/x
  3. Step 3: Cross multiply
    5,660.64x = 7,809.54 × 4,172.12
  4. Step 4: Simplify right side
    5,660.64x = 32,582,328.93
  5. Step 5: Solve for x
    x = 32,582,328.93/5,660.64
  6. Step 6: Final answer
    x = 5,755.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.