Home / 4,986.02-7,478.34-2,645

Finding the Fourth Proportional to 4,986.02, 7,478.34 and 2,645

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Solution

The fourth proportional to 4,986.02, 7,478.34 and 2,645 is: 3,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.02 : 7,478.34 = 2,645 : x
  2. Step 2: Convert to fraction form
    4,986.02/7,478.34 = 2,645/x
  3. Step 3: Cross multiply
    4,986.02x = 7,478.34 × 2,645
  4. Step 4: Simplify right side
    4,986.02x = 19,780,209.30
  5. Step 5: Solve for x
    x = 19,780,209.30/4,986.02
  6. Step 6: Final answer
    x = 3,967.13

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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.