Home / 4,989.16-7,484.13-2,909.37

Finding the Fourth Proportional to 4,989.16, 7,484.13 and 2,909.37

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Solution

The fourth proportional to 4,989.16, 7,484.13 and 2,909.37 is: 4,364.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.16 : 7,484.13 = 2,909.37 : x
  2. Step 2: Convert to fraction form
    4,989.16/7,484.13 = 2,909.37/x
  3. Step 3: Cross multiply
    4,989.16x = 7,484.13 × 2,909.37
  4. Step 4: Simplify right side
    4,989.16x = 21,774,120.45
  5. Step 5: Solve for x
    x = 21,774,120.45/4,989.16
  6. Step 6: Final answer
    x = 4,364.28

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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.