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Finding the Fourth Proportional to 2,986.55, 4,479.50 and 795.50

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Solution

The fourth proportional to 2,986.55, 4,479.50 and 795.50 is: 1,193.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.55 : 4,479.50 = 795.50 : x
  2. Step 2: Convert to fraction form
    2,986.55/4,479.50 = 795.50/x
  3. Step 3: Cross multiply
    2,986.55x = 4,479.50 × 795.50
  4. Step 4: Simplify right side
    2,986.55x = 3,563,455.44
  5. Step 5: Solve for x
    x = 3,563,455.44/2,986.55
  6. Step 6: Final answer
    x = 1,193.17

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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.