Home / 2,779.16-4,165.83-1,316.57

Finding the Fourth Proportional to 2,779.16, 4,165.83 and 1,316.57

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Solution

The fourth proportional to 2,779.16, 4,165.83 and 1,316.57 is: 1,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.16 : 4,165.83 = 1,316.57 : x
  2. Step 2: Convert to fraction form
    2,779.16/4,165.83 = 1,316.57/x
  3. Step 3: Cross multiply
    2,779.16x = 4,165.83 × 1,316.57
  4. Step 4: Simplify right side
    2,779.16x = 5,484,585.97
  5. Step 5: Solve for x
    x = 5,484,585.97/2,779.16
  6. Step 6: Final answer
    x = 1,973.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.