Home / 1,921.77-2,883.06-624.15

Finding the Fourth Proportional to 1,921.77, 2,883.06 and 624.15

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Solution

The fourth proportional to 1,921.77, 2,883.06 and 624.15 is: 936.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.77 : 2,883.06 = 624.15 : x
  2. Step 2: Convert to fraction form
    1,921.77/2,883.06 = 624.15/x
  3. Step 3: Cross multiply
    1,921.77x = 2,883.06 × 624.15
  4. Step 4: Simplify right side
    1,921.77x = 1,799,461.90
  5. Step 5: Solve for x
    x = 1,799,461.90/1,921.77
  6. Step 6: Final answer
    x = 936.36

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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.