Home / 5,299.07-7,312.80-2,909.26

Finding the Fourth Proportional to 5,299.07, 7,312.80 and 2,909.26

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Solution

The fourth proportional to 5,299.07, 7,312.80 and 2,909.26 is: 4,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.07 : 7,312.80 = 2,909.26 : x
  2. Step 2: Convert to fraction form
    5,299.07/7,312.80 = 2,909.26/x
  3. Step 3: Cross multiply
    5,299.07x = 7,312.80 × 2,909.26
  4. Step 4: Simplify right side
    5,299.07x = 21,274,835.02
  5. Step 5: Solve for x
    x = 21,274,835.02/5,299.07
  6. Step 6: Final answer
    x = 4,014.83

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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.