Home / 1,943.55-2,679.01-1,782.66

Finding the Fourth Proportional to 1,943.55, 2,679.01 and 1,782.66

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Solution

The fourth proportional to 1,943.55, 2,679.01 and 1,782.66 is: 2,457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.55 : 2,679.01 = 1,782.66 : x
  2. Step 2: Convert to fraction form
    1,943.55/2,679.01 = 1,782.66/x
  3. Step 3: Cross multiply
    1,943.55x = 2,679.01 × 1,782.66
  4. Step 4: Simplify right side
    1,943.55x = 4,775,779.58
  5. Step 5: Solve for x
    x = 4,775,779.58/1,943.55
  6. Step 6: Final answer
    x = 2,457.25

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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.