Home / 2,990.16-4,485.24-1,347.48

Finding the Fourth Proportional to 2,990.16, 4,485.24 and 1,347.48

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Solution

The fourth proportional to 2,990.16, 4,485.24 and 1,347.48 is: 2,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.16 : 4,485.24 = 1,347.48 : x
  2. Step 2: Convert to fraction form
    2,990.16/4,485.24 = 1,347.48/x
  3. Step 3: Cross multiply
    2,990.16x = 4,485.24 × 1,347.48
  4. Step 4: Simplify right side
    2,990.16x = 6,043,771.20
  5. Step 5: Solve for x
    x = 6,043,771.20/2,990.16
  6. Step 6: Final answer
    x = 2,021.22

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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.