Home / 3,153.06-4,727.77-1,921.05

Finding the Fourth Proportional to 3,153.06, 4,727.77 and 1,921.05

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Solution

The fourth proportional to 3,153.06, 4,727.77 and 1,921.05 is: 2,880.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.06 : 4,727.77 = 1,921.05 : x
  2. Step 2: Convert to fraction form
    3,153.06/4,727.77 = 1,921.05/x
  3. Step 3: Cross multiply
    3,153.06x = 4,727.77 × 1,921.05
  4. Step 4: Simplify right side
    3,153.06x = 9,082,277.76
  5. Step 5: Solve for x
    x = 9,082,277.76/3,153.06
  6. Step 6: Final answer
    x = 2,880.46

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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.