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Finding the Fourth Proportional to 2,985.03, 4,477.46 and 793.77

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Solution

The fourth proportional to 2,985.03, 4,477.46 and 793.77 is: 1,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.03 : 4,477.46 = 793.77 : x
  2. Step 2: Convert to fraction form
    2,985.03/4,477.46 = 793.77/x
  3. Step 3: Cross multiply
    2,985.03x = 4,477.46 × 793.77
  4. Step 4: Simplify right side
    2,985.03x = 3,554,069.46
  5. Step 5: Solve for x
    x = 3,554,069.46/2,985.03
  6. Step 6: Final answer
    x = 1,190.63

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1.5x scale

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.