Home / 4,701.81-6,489.30-2,909.49

Finding the Fourth Proportional to 4,701.81, 6,489.30 and 2,909.49

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Solution

The fourth proportional to 4,701.81, 6,489.30 and 2,909.49 is: 4,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,701.81 : 6,489.30 = 2,909.49 : x
  2. Step 2: Convert to fraction form
    4,701.81/6,489.30 = 2,909.49/x
  3. Step 3: Cross multiply
    4,701.81x = 6,489.30 × 2,909.49
  4. Step 4: Simplify right side
    4,701.81x = 18,880,553.46
  5. Step 5: Solve for x
    x = 18,880,553.46/4,701.81
  6. Step 6: Final answer
    x = 4,015.59

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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.