Home / 2,990.95-4,494.35-1,605.31

Finding the Fourth Proportional to 2,990.95, 4,494.35 and 1,605.31

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Solution

The fourth proportional to 2,990.95, 4,494.35 and 1,605.31 is: 2,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.95 : 4,494.35 = 1,605.31 : x
  2. Step 2: Convert to fraction form
    2,990.95/4,494.35 = 1,605.31/x
  3. Step 3: Cross multiply
    2,990.95x = 4,494.35 × 1,605.31
  4. Step 4: Simplify right side
    2,990.95x = 7,214,816.97
  5. Step 5: Solve for x
    x = 7,214,816.97/2,990.95
  6. Step 6: Final answer
    x = 2,412.22

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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.