Home / 3,030.81-4,548.15-1,992.90

Finding the Fourth Proportional to 3,030.81, 4,548.15 and 1,992.90

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Solution

The fourth proportional to 3,030.81, 4,548.15 and 1,992.90 is: 2,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.81 : 4,548.15 = 1,992.90 : x
  2. Step 2: Convert to fraction form
    3,030.81/4,548.15 = 1,992.90/x
  3. Step 3: Cross multiply
    3,030.81x = 4,548.15 × 1,992.90
  4. Step 4: Simplify right side
    3,030.81x = 9,064,008.14
  5. Step 5: Solve for x
    x = 9,064,008.14/3,030.81
  6. Step 6: Final answer
    x = 2,990.62

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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.