Home / 2,443.04-3,670.32-1,989.92

Finding the Fourth Proportional to 2,443.04, 3,670.32 and 1,989.92

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Solution

The fourth proportional to 2,443.04, 3,670.32 and 1,989.92 is: 2,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,443.04 : 3,670.32 = 1,989.92 : x
  2. Step 2: Convert to fraction form
    2,443.04/3,670.32 = 1,989.92/x
  3. Step 3: Cross multiply
    2,443.04x = 3,670.32 × 1,989.92
  4. Step 4: Simplify right side
    2,443.04x = 7,303,643.17
  5. Step 5: Solve for x
    x = 7,303,643.17/2,443.04
  6. Step 6: Final answer
    x = 2,989.57

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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.