Home / 1,890.50-2,609.05-1,062.66

Finding the Fourth Proportional to 1,890.50, 2,609.05 and 1,062.66

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Solution

The fourth proportional to 1,890.50, 2,609.05 and 1,062.66 is: 1,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.50 : 2,609.05 = 1,062.66 : x
  2. Step 2: Convert to fraction form
    1,890.50/2,609.05 = 1,062.66/x
  3. Step 3: Cross multiply
    1,890.50x = 2,609.05 × 1,062.66
  4. Step 4: Simplify right side
    1,890.50x = 2,772,533.07
  5. Step 5: Solve for x
    x = 2,772,533.07/1,890.50
  6. Step 6: Final answer
    x = 1,466.56

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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.