Home / 2,990.96-4,483.56-1,603.28

Finding the Fourth Proportional to 2,990.96, 4,483.56 and 1,603.28

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Solution

The fourth proportional to 2,990.96, 4,483.56 and 1,603.28 is: 2,403.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.96 : 4,483.56 = 1,603.28 : x
  2. Step 2: Convert to fraction form
    2,990.96/4,483.56 = 1,603.28/x
  3. Step 3: Cross multiply
    2,990.96x = 4,483.56 × 1,603.28
  4. Step 4: Simplify right side
    2,990.96x = 7,188,402.08
  5. Step 5: Solve for x
    x = 7,188,402.08/2,990.96
  6. Step 6: Final answer
    x = 2,403.38

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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.