Home / 5,239.04-7,856.16-2,116.48

Finding the Fourth Proportional to 5,239.04, 7,856.16 and 2,116.48

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Solution

The fourth proportional to 5,239.04, 7,856.16 and 2,116.48 is: 3,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.04 : 7,856.16 = 2,116.48 : x
  2. Step 2: Convert to fraction form
    5,239.04/7,856.16 = 2,116.48/x
  3. Step 3: Cross multiply
    5,239.04x = 7,856.16 × 2,116.48
  4. Step 4: Simplify right side
    5,239.04x = 16,627,405.52
  5. Step 5: Solve for x
    x = 16,627,405.52/5,239.04
  6. Step 6: Final answer
    x = 3,173.75

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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.