Home / 5,122.64-7,684.28-1,660.24

Finding the Fourth Proportional to 5,122.64, 7,684.28 and 1,660.24

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Solution

The fourth proportional to 5,122.64, 7,684.28 and 1,660.24 is: 2,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.64 : 7,684.28 = 1,660.24 : x
  2. Step 2: Convert to fraction form
    5,122.64/7,684.28 = 1,660.24/x
  3. Step 3: Cross multiply
    5,122.64x = 7,684.28 × 1,660.24
  4. Step 4: Simplify right side
    5,122.64x = 12,757,749.03
  5. Step 5: Solve for x
    x = 12,757,749.03/5,122.64
  6. Step 6: Final answer
    x = 2,490.46

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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.