Home / 1,810.56-2,495.66-1,220.07

Finding the Fourth Proportional to 1,810.56, 2,495.66 and 1,220.07

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Solution

The fourth proportional to 1,810.56, 2,495.66 and 1,220.07 is: 1,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.56 : 2,495.66 = 1,220.07 : x
  2. Step 2: Convert to fraction form
    1,810.56/2,495.66 = 1,220.07/x
  3. Step 3: Cross multiply
    1,810.56x = 2,495.66 × 1,220.07
  4. Step 4: Simplify right side
    1,810.56x = 3,044,879.90
  5. Step 5: Solve for x
    x = 3,044,879.90/1,810.56
  6. Step 6: Final answer
    x = 1,681.73

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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.