Home / 7,613.18-11,420.16-2,419.46

Finding the Fourth Proportional to 7,613.18, 11,420.16 and 2,419.46

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Solution

The fourth proportional to 7,613.18, 11,420.16 and 2,419.46 is: 3,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.18 : 11,420.16 = 2,419.46 : x
  2. Step 2: Convert to fraction form
    7,613.18/11,420.16 = 2,419.46/x
  3. Step 3: Cross multiply
    7,613.18x = 11,420.16 × 2,419.46
  4. Step 4: Simplify right side
    7,613.18x = 27,630,620.31
  5. Step 5: Solve for x
    x = 27,630,620.31/7,613.18
  6. Step 6: Final answer
    x = 3,629.31

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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.