Home / 5,239.32-7,230.15-2,881.41

Finding the Fourth Proportional to 5,239.32, 7,230.15 and 2,881.41

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Solution

The fourth proportional to 5,239.32, 7,230.15 and 2,881.41 is: 3,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.32 : 7,230.15 = 2,881.41 : x
  2. Step 2: Convert to fraction form
    5,239.32/7,230.15 = 2,881.41/x
  3. Step 3: Cross multiply
    5,239.32x = 7,230.15 × 2,881.41
  4. Step 4: Simplify right side
    5,239.32x = 20,833,026.51
  5. Step 5: Solve for x
    x = 20,833,026.51/5,239.32
  6. Step 6: Final answer
    x = 3,976.28

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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.