Home / 3,740.64-5,610.96-1,275.76

Finding the Fourth Proportional to 3,740.64, 5,610.96 and 1,275.76

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Solution

The fourth proportional to 3,740.64, 5,610.96 and 1,275.76 is: 1,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.64 : 5,610.96 = 1,275.76 : x
  2. Step 2: Convert to fraction form
    3,740.64/5,610.96 = 1,275.76/x
  3. Step 3: Cross multiply
    3,740.64x = 5,610.96 × 1,275.76
  4. Step 4: Simplify right side
    3,740.64x = 7,158,238.33
  5. Step 5: Solve for x
    x = 7,158,238.33/3,740.64
  6. Step 6: Final answer
    x = 1,913.64

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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.