Home / 3,078.18-4,613.43-1,539.62

Finding the Fourth Proportional to 3,078.18, 4,613.43 and 1,539.62

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Solution

The fourth proportional to 3,078.18, 4,613.43 and 1,539.62 is: 2,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.18 : 4,613.43 = 1,539.62 : x
  2. Step 2: Convert to fraction form
    3,078.18/4,613.43 = 1,539.62/x
  3. Step 3: Cross multiply
    3,078.18x = 4,613.43 × 1,539.62
  4. Step 4: Simplify right side
    3,078.18x = 7,102,929.10
  5. Step 5: Solve for x
    x = 7,102,929.10/3,078.18
  6. Step 6: Final answer
    x = 2,307.51

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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.