Home / 1,927.29-2,890.93-1,105.00

Finding the Fourth Proportional to 1,927.29, 2,890.93 and 1,105.00

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Solution

The fourth proportional to 1,927.29, 2,890.93 and 1,105.00 is: 1,657.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.29 : 2,890.93 = 1,105.00 : x
  2. Step 2: Convert to fraction form
    1,927.29/2,890.93 = 1,105.00/x
  3. Step 3: Cross multiply
    1,927.29x = 2,890.93 × 1,105.00
  4. Step 4: Simplify right side
    1,927.29x = 3,194,463.20
  5. Step 5: Solve for x
    x = 3,194,463.20/1,927.29
  6. Step 6: Final answer
    x = 1,657.49

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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.