Home / 1,890.51-2,608.74-1,093.70

Finding the Fourth Proportional to 1,890.51, 2,608.74 and 1,093.70

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Solution

The fourth proportional to 1,890.51, 2,608.74 and 1,093.70 is: 1,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.51 : 2,608.74 = 1,093.70 : x
  2. Step 2: Convert to fraction form
    1,890.51/2,608.74 = 1,093.70/x
  3. Step 3: Cross multiply
    1,890.51x = 2,608.74 × 1,093.70
  4. Step 4: Simplify right side
    1,890.51x = 2,853,165.89
  5. Step 5: Solve for x
    x = 2,853,165.89/1,890.51
  6. Step 6: Final answer
    x = 1,509.20

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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.