Home / 1,779.17-2,455.44-1,116.05

Finding the Fourth Proportional to 1,779.17, 2,455.44 and 1,116.05

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Solution

The fourth proportional to 1,779.17, 2,455.44 and 1,116.05 is: 1,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.17 : 2,455.44 = 1,116.05 : x
  2. Step 2: Convert to fraction form
    1,779.17/2,455.44 = 1,116.05/x
  3. Step 3: Cross multiply
    1,779.17x = 2,455.44 × 1,116.05
  4. Step 4: Simplify right side
    1,779.17x = 2,740,393.81
  5. Step 5: Solve for x
    x = 2,740,393.81/1,779.17
  6. Step 6: Final answer
    x = 1,540.27

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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.