Home / 5,630.53-7,770.15-3,112.60

Finding the Fourth Proportional to 5,630.53, 7,770.15 and 3,112.60

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Solution

The fourth proportional to 5,630.53, 7,770.15 and 3,112.60 is: 4,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.53 : 7,770.15 = 3,112.60 : x
  2. Step 2: Convert to fraction form
    5,630.53/7,770.15 = 3,112.60/x
  3. Step 3: Cross multiply
    5,630.53x = 7,770.15 × 3,112.60
  4. Step 4: Simplify right side
    5,630.53x = 24,185,368.89
  5. Step 5: Solve for x
    x = 24,185,368.89/5,630.53
  6. Step 6: Final answer
    x = 4,295.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.