Home / 5,152.56-7,112.58-3,478.80

Finding the Fourth Proportional to 5,152.56, 7,112.58 and 3,478.80

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Solution

The fourth proportional to 5,152.56, 7,112.58 and 3,478.80 is: 4,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.56 : 7,112.58 = 3,478.80 : x
  2. Step 2: Convert to fraction form
    5,152.56/7,112.58 = 3,478.80/x
  3. Step 3: Cross multiply
    5,152.56x = 7,112.58 × 3,478.80
  4. Step 4: Simplify right side
    5,152.56x = 24,743,243.30
  5. Step 5: Solve for x
    x = 24,743,243.30/5,152.56
  6. Step 6: Final answer
    x = 4,802.13

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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.