Home / 1,533.06-2,309.83-1,387.00

Finding the Fourth Proportional to 1,533.06, 2,309.83 and 1,387.00

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Solution

The fourth proportional to 1,533.06, 2,309.83 and 1,387.00 is: 2,089.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.06 : 2,309.83 = 1,387.00 : x
  2. Step 2: Convert to fraction form
    1,533.06/2,309.83 = 1,387.00/x
  3. Step 3: Cross multiply
    1,533.06x = 2,309.83 × 1,387.00
  4. Step 4: Simplify right side
    1,533.06x = 3,203,728.44
  5. Step 5: Solve for x
    x = 3,203,728.44/1,533.06
  6. Step 6: Final answer
    x = 2,089.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.