Home / 5,146.64-7,720.36-1,684.24

Finding the Fourth Proportional to 5,146.64, 7,720.36 and 1,684.24

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Solution

The fourth proportional to 5,146.64, 7,720.36 and 1,684.24 is: 2,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.64 : 7,720.36 = 1,684.24 : x
  2. Step 2: Convert to fraction form
    5,146.64/7,720.36 = 1,684.24/x
  3. Step 3: Cross multiply
    5,146.64x = 7,720.36 × 1,684.24
  4. Step 4: Simplify right side
    5,146.64x = 13,002,939.13
  5. Step 5: Solve for x
    x = 13,002,939.13/5,146.64
  6. Step 6: Final answer
    x = 2,526.49

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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.