Home / 2,918.02-4,376.84-1,186.60

Finding the Fourth Proportional to 2,918.02, 4,376.84 and 1,186.60

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Solution

The fourth proportional to 2,918.02, 4,376.84 and 1,186.60 is: 1,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.02 : 4,376.84 = 1,186.60 : x
  2. Step 2: Convert to fraction form
    2,918.02/4,376.84 = 1,186.60/x
  3. Step 3: Cross multiply
    2,918.02x = 4,376.84 × 1,186.60
  4. Step 4: Simplify right side
    2,918.02x = 5,193,558.34
  5. Step 5: Solve for x
    x = 5,193,558.34/2,918.02
  6. Step 6: Final answer
    x = 1,779.82

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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.