Home / 7,181.42-9,911.58-4,628.45

Finding the Fourth Proportional to 7,181.42, 9,911.58 and 4,628.45

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Solution

The fourth proportional to 7,181.42, 9,911.58 and 4,628.45 is: 6,388.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.42 : 9,911.58 = 4,628.45 : x
  2. Step 2: Convert to fraction form
    7,181.42/9,911.58 = 4,628.45/x
  3. Step 3: Cross multiply
    7,181.42x = 9,911.58 × 4,628.45
  4. Step 4: Simplify right side
    7,181.42x = 45,875,252.45
  5. Step 5: Solve for x
    x = 45,875,252.45/7,181.42
  6. Step 6: Final answer
    x = 6,388.05

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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.