Home / 3,190.32-4,785.48-1,458

Finding the Fourth Proportional to 3,190.32, 4,785.48 and 1,458

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Solution

The fourth proportional to 3,190.32, 4,785.48 and 1,458 is: 2,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.32 : 4,785.48 = 1,458 : x
  2. Step 2: Convert to fraction form
    3,190.32/4,785.48 = 1,458/x
  3. Step 3: Cross multiply
    3,190.32x = 4,785.48 × 1,458
  4. Step 4: Simplify right side
    3,190.32x = 6,977,229.84
  5. Step 5: Solve for x
    x = 6,977,229.84/3,190.32
  6. Step 6: Final answer
    x = 2,187.00

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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.