Home / 2,989.51-4,124.41-1,810.15

Finding the Fourth Proportional to 2,989.51, 4,124.41 and 1,810.15

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Solution

The fourth proportional to 2,989.51, 4,124.41 and 1,810.15 is: 2,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.51 : 4,124.41 = 1,810.15 : x
  2. Step 2: Convert to fraction form
    2,989.51/4,124.41 = 1,810.15/x
  3. Step 3: Cross multiply
    2,989.51x = 4,124.41 × 1,810.15
  4. Step 4: Simplify right side
    2,989.51x = 7,465,785.93
  5. Step 5: Solve for x
    x = 7,465,785.93/2,989.51
  6. Step 6: Final answer
    x = 2,497.33

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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.