Home / 7,041.20-10,557.96-3,143.60

Finding the Fourth Proportional to 7,041.20, 10,557.96 and 3,143.60

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Solution

The fourth proportional to 7,041.20, 10,557.96 and 3,143.60 is: 4,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.20 : 10,557.96 = 3,143.60 : x
  2. Step 2: Convert to fraction form
    7,041.20/10,557.96 = 3,143.60/x
  3. Step 3: Cross multiply
    7,041.20x = 10,557.96 × 3,143.60
  4. Step 4: Simplify right side
    7,041.20x = 33,190,003.06
  5. Step 5: Solve for x
    x = 33,190,003.06/7,041.20
  6. Step 6: Final answer
    x = 4,713.69

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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.