Home / 5,211.10-7,823.05-2,615.90

Finding the Fourth Proportional to 5,211.10, 7,823.05 and 2,615.90

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Solution

The fourth proportional to 5,211.10, 7,823.05 and 2,615.90 is: 3,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.10 : 7,823.05 = 2,615.90 : x
  2. Step 2: Convert to fraction form
    5,211.10/7,823.05 = 2,615.90/x
  3. Step 3: Cross multiply
    5,211.10x = 7,823.05 × 2,615.90
  4. Step 4: Simplify right side
    5,211.10x = 20,464,316.50
  5. Step 5: Solve for x
    x = 20,464,316.50/5,211.10
  6. Step 6: Final answer
    x = 3,927.06

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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.