Home / 5,307.15-7,953.19-3,909.50

Finding the Fourth Proportional to 5,307.15, 7,953.19 and 3,909.50

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Solution

The fourth proportional to 5,307.15, 7,953.19 and 3,909.50 is: 5,858.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.15 : 7,953.19 = 3,909.50 : x
  2. Step 2: Convert to fraction form
    5,307.15/7,953.19 = 3,909.50/x
  3. Step 3: Cross multiply
    5,307.15x = 7,953.19 × 3,909.50
  4. Step 4: Simplify right side
    5,307.15x = 31,092,976.59
  5. Step 5: Solve for x
    x = 31,092,976.59/5,307.15
  6. Step 6: Final answer
    x = 5,858.69

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1.5x scale

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.