Home / 2,489.06-3,430.95-2,089.94

Finding the Fourth Proportional to 2,489.06, 3,430.95 and 2,089.94

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Solution

The fourth proportional to 2,489.06, 3,430.95 and 2,089.94 is: 2,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.06 : 3,430.95 = 2,089.94 : x
  2. Step 2: Convert to fraction form
    2,489.06/3,430.95 = 2,089.94/x
  3. Step 3: Cross multiply
    2,489.06x = 3,430.95 × 2,089.94
  4. Step 4: Simplify right side
    2,489.06x = 7,170,462.49
  5. Step 5: Solve for x
    x = 7,170,462.49/2,489.06
  6. Step 6: Final answer
    x = 2,880.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.