Home / 7,120.19-10,680.43-2,445.58

Finding the Fourth Proportional to 7,120.19, 10,680.43 and 2,445.58

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Solution

The fourth proportional to 7,120.19, 10,680.43 and 2,445.58 is: 3,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.19 : 10,680.43 = 2,445.58 : x
  2. Step 2: Convert to fraction form
    7,120.19/10,680.43 = 2,445.58/x
  3. Step 3: Cross multiply
    7,120.19x = 10,680.43 × 2,445.58
  4. Step 4: Simplify right side
    7,120.19x = 26,119,846.00
  5. Step 5: Solve for x
    x = 26,119,846.00/7,120.19
  6. Step 6: Final answer
    x = 3,668.42

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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.