Home / 7,240.08-9,989.58-4,407.42

Finding the Fourth Proportional to 7,240.08, 9,989.58 and 4,407.42

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Solution

The fourth proportional to 7,240.08, 9,989.58 and 4,407.42 is: 6,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.08 : 9,989.58 = 4,407.42 : x
  2. Step 2: Convert to fraction form
    7,240.08/9,989.58 = 4,407.42/x
  3. Step 3: Cross multiply
    7,240.08x = 9,989.58 × 4,407.42
  4. Step 4: Simplify right side
    7,240.08x = 44,028,274.68
  5. Step 5: Solve for x
    x = 44,028,274.68/7,240.08
  6. Step 6: Final answer
    x = 6,081.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.