Home / 2,985.89-4,478.87-1,137.02

Finding the Fourth Proportional to 2,985.89, 4,478.87 and 1,137.02

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Solution

The fourth proportional to 2,985.89, 4,478.87 and 1,137.02 is: 1,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.89 : 4,478.87 = 1,137.02 : x
  2. Step 2: Convert to fraction form
    2,985.89/4,478.87 = 1,137.02/x
  3. Step 3: Cross multiply
    2,985.89x = 4,478.87 × 1,137.02
  4. Step 4: Simplify right side
    2,985.89x = 5,092,559.08
  5. Step 5: Solve for x
    x = 5,092,559.08/2,985.89
  6. Step 6: Final answer
    x = 1,705.54

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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.