Home / 2,124.81-3,182.36-2,089.17

Finding the Fourth Proportional to 2,124.81, 3,182.36 and 2,089.17

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Solution

The fourth proportional to 2,124.81, 3,182.36 and 2,089.17 is: 3,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.81 : 3,182.36 = 2,089.17 : x
  2. Step 2: Convert to fraction form
    2,124.81/3,182.36 = 2,089.17/x
  3. Step 3: Cross multiply
    2,124.81x = 3,182.36 × 2,089.17
  4. Step 4: Simplify right side
    2,124.81x = 6,648,480.60
  5. Step 5: Solve for x
    x = 6,648,480.60/2,124.81
  6. Step 6: Final answer
    x = 3,128.98

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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.