Home / 4,181.81-6,272.76-1,990.08

Finding the Fourth Proportional to 4,181.81, 6,272.76 and 1,990.08

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Solution

The fourth proportional to 4,181.81, 6,272.76 and 1,990.08 is: 2,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,181.81 : 6,272.76 = 1,990.08 : x
  2. Step 2: Convert to fraction form
    4,181.81/6,272.76 = 1,990.08/x
  3. Step 3: Cross multiply
    4,181.81x = 6,272.76 × 1,990.08
  4. Step 4: Simplify right side
    4,181.81x = 12,483,294.22
  5. Step 5: Solve for x
    x = 12,483,294.22/4,181.81
  6. Step 6: Final answer
    x = 2,985.14

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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.