Home / 3,185.47-4,395.51-1,859.32

Finding the Fourth Proportional to 3,185.47, 4,395.51 and 1,859.32

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Solution

The fourth proportional to 3,185.47, 4,395.51 and 1,859.32 is: 2,565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.47 : 4,395.51 = 1,859.32 : x
  2. Step 2: Convert to fraction form
    3,185.47/4,395.51 = 1,859.32/x
  3. Step 3: Cross multiply
    3,185.47x = 4,395.51 × 1,859.32
  4. Step 4: Simplify right side
    3,185.47x = 8,172,659.65
  5. Step 5: Solve for x
    x = 8,172,659.65/3,185.47
  6. Step 6: Final answer
    x = 2,565.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.