Home / 2,989.47-4,125.99-1,730.33

Finding the Fourth Proportional to 2,989.47, 4,125.99 and 1,730.33

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Solution

The fourth proportional to 2,989.47, 4,125.99 and 1,730.33 is: 2,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.47 : 4,125.99 = 1,730.33 : x
  2. Step 2: Convert to fraction form
    2,989.47/4,125.99 = 1,730.33/x
  3. Step 3: Cross multiply
    2,989.47x = 4,125.99 × 1,730.33
  4. Step 4: Simplify right side
    2,989.47x = 7,139,303.65
  5. Step 5: Solve for x
    x = 7,139,303.65/2,989.47
  6. Step 6: Final answer
    x = 2,388.15

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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.