Home / 2,779.16-4,166.70-1,316.60

Finding the Fourth Proportional to 2,779.16, 4,166.70 and 1,316.60

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Solution

The fourth proportional to 2,779.16, 4,166.70 and 1,316.60 is: 1,973.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.16 : 4,166.70 = 1,316.60 : x
  2. Step 2: Convert to fraction form
    2,779.16/4,166.70 = 1,316.60/x
  3. Step 3: Cross multiply
    2,779.16x = 4,166.70 × 1,316.60
  4. Step 4: Simplify right side
    2,779.16x = 5,485,877.22
  5. Step 5: Solve for x
    x = 5,485,877.22/2,779.16
  6. Step 6: Final answer
    x = 1,973.93

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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.