Home / 3,121.86-4,683.12-1,041.14

Finding the Fourth Proportional to 3,121.86, 4,683.12 and 1,041.14

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Solution

The fourth proportional to 3,121.86, 4,683.12 and 1,041.14 is: 1,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.86 : 4,683.12 = 1,041.14 : x
  2. Step 2: Convert to fraction form
    3,121.86/4,683.12 = 1,041.14/x
  3. Step 3: Cross multiply
    3,121.86x = 4,683.12 × 1,041.14
  4. Step 4: Simplify right side
    3,121.86x = 4,875,765.02
  5. Step 5: Solve for x
    x = 4,875,765.02/3,121.86
  6. Step 6: Final answer
    x = 1,561.82

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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.