Home / 2,078.02-2,866.75-1,368.96

Finding the Fourth Proportional to 2,078.02, 2,866.75 and 1,368.96

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Solution

The fourth proportional to 2,078.02, 2,866.75 and 1,368.96 is: 1,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.02 : 2,866.75 = 1,368.96 : x
  2. Step 2: Convert to fraction form
    2,078.02/2,866.75 = 1,368.96/x
  3. Step 3: Cross multiply
    2,078.02x = 2,866.75 × 1,368.96
  4. Step 4: Simplify right side
    2,078.02x = 3,924,466.08
  5. Step 5: Solve for x
    x = 3,924,466.08/2,078.02
  6. Step 6: Final answer
    x = 1,888.56

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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.