Home / 2,125.47-3,188.53-1,084.91

Finding the Fourth Proportional to 2,125.47, 3,188.53 and 1,084.91

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Solution

The fourth proportional to 2,125.47, 3,188.53 and 1,084.91 is: 1,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.47 : 3,188.53 = 1,084.91 : x
  2. Step 2: Convert to fraction form
    2,125.47/3,188.53 = 1,084.91/x
  3. Step 3: Cross multiply
    2,125.47x = 3,188.53 × 1,084.91
  4. Step 4: Simplify right side
    2,125.47x = 3,459,265.51
  5. Step 5: Solve for x
    x = 3,459,265.51/2,125.47
  6. Step 6: Final answer
    x = 1,627.53

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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.