Home / 3,485.64-5,227.35-1,145.10

Finding the Fourth Proportional to 3,485.64, 5,227.35 and 1,145.10

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Solution

The fourth proportional to 3,485.64, 5,227.35 and 1,145.10 is: 1,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.64 : 5,227.35 = 1,145.10 : x
  2. Step 2: Convert to fraction form
    3,485.64/5,227.35 = 1,145.10/x
  3. Step 3: Cross multiply
    3,485.64x = 5,227.35 × 1,145.10
  4. Step 4: Simplify right side
    3,485.64x = 5,985,824.39
  5. Step 5: Solve for x
    x = 5,985,824.39/3,485.64
  6. Step 6: Final answer
    x = 1,717.28

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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.