Home / 4,378.68-6,570.64-1,745.72

Finding the Fourth Proportional to 4,378.68, 6,570.64 and 1,745.72

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Solution

The fourth proportional to 4,378.68, 6,570.64 and 1,745.72 is: 2,619.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.68 : 6,570.64 = 1,745.72 : x
  2. Step 2: Convert to fraction form
    4,378.68/6,570.64 = 1,745.72/x
  3. Step 3: Cross multiply
    4,378.68x = 6,570.64 × 1,745.72
  4. Step 4: Simplify right side
    4,378.68x = 11,470,497.66
  5. Step 5: Solve for x
    x = 11,470,497.66/4,378.68
  6. Step 6: Final answer
    x = 2,619.62

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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.