Home / 5,299.11-7,312.77-2,909.10

Finding the Fourth Proportional to 5,299.11, 7,312.77 and 2,909.10

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Solution

The fourth proportional to 5,299.11, 7,312.77 and 2,909.10 is: 4,014.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.11 : 7,312.77 = 2,909.10 : x
  2. Step 2: Convert to fraction form
    5,299.11/7,312.77 = 2,909.10/x
  3. Step 3: Cross multiply
    5,299.11x = 7,312.77 × 2,909.10
  4. Step 4: Simplify right side
    5,299.11x = 21,273,579.21
  5. Step 5: Solve for x
    x = 21,273,579.21/5,299.11
  6. Step 6: Final answer
    x = 4,014.56

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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.