Home / 3,132.72-4,323.93-1,807.22

Finding the Fourth Proportional to 3,132.72, 4,323.93 and 1,807.22

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Solution

The fourth proportional to 3,132.72, 4,323.93 and 1,807.22 is: 2,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.72 : 4,323.93 = 1,807.22 : x
  2. Step 2: Convert to fraction form
    3,132.72/4,323.93 = 1,807.22/x
  3. Step 3: Cross multiply
    3,132.72x = 4,323.93 × 1,807.22
  4. Step 4: Simplify right side
    3,132.72x = 7,814,292.77
  5. Step 5: Solve for x
    x = 7,814,292.77/3,132.72
  6. Step 6: Final answer
    x = 2,494.41

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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.