Home / 2,989.47-4,486.95-2,293.89

Finding the Fourth Proportional to 2,989.47, 4,486.95 and 2,293.89

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Solution

The fourth proportional to 2,989.47, 4,486.95 and 2,293.89 is: 3,442.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.47 : 4,486.95 = 2,293.89 : x
  2. Step 2: Convert to fraction form
    2,989.47/4,486.95 = 2,293.89/x
  3. Step 3: Cross multiply
    2,989.47x = 4,486.95 × 2,293.89
  4. Step 4: Simplify right side
    2,989.47x = 10,292,569.74
  5. Step 5: Solve for x
    x = 10,292,569.74/2,989.47
  6. Step 6: Final answer
    x = 3,442.94

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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.