Home / 3,153.36-4,730.58-1,905.15

Finding the Fourth Proportional to 3,153.36, 4,730.58 and 1,905.15

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Solution

The fourth proportional to 3,153.36, 4,730.58 and 1,905.15 is: 2,858.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.36 : 4,730.58 = 1,905.15 : x
  2. Step 2: Convert to fraction form
    3,153.36/4,730.58 = 1,905.15/x
  3. Step 3: Cross multiply
    3,153.36x = 4,730.58 × 1,905.15
  4. Step 4: Simplify right side
    3,153.36x = 9,012,464.49
  5. Step 5: Solve for x
    x = 9,012,464.49/3,153.36
  6. Step 6: Final answer
    x = 2,858.05

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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.