Home / 5,005.99-6,909.57-3,116.46

Finding the Fourth Proportional to 5,005.99, 6,909.57 and 3,116.46

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Solution

The fourth proportional to 5,005.99, 6,909.57 and 3,116.46 is: 4,301.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.99 : 6,909.57 = 3,116.46 : x
  2. Step 2: Convert to fraction form
    5,005.99/6,909.57 = 3,116.46/x
  3. Step 3: Cross multiply
    5,005.99x = 6,909.57 × 3,116.46
  4. Step 4: Simplify right side
    5,005.99x = 21,533,398.52
  5. Step 5: Solve for x
    x = 21,533,398.52/5,005.99
  6. Step 6: Final answer
    x = 4,301.53

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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.