Home / 1,382.44-2,070.30-1,055.32

Finding the Fourth Proportional to 1,382.44, 2,070.30 and 1,055.32

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Solution

The fourth proportional to 1,382.44, 2,070.30 and 1,055.32 is: 1,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382.44 : 2,070.30 = 1,055.32 : x
  2. Step 2: Convert to fraction form
    1,382.44/2,070.30 = 1,055.32/x
  3. Step 3: Cross multiply
    1,382.44x = 2,070.30 × 1,055.32
  4. Step 4: Simplify right side
    1,382.44x = 2,184,829.00
  5. Step 5: Solve for x
    x = 2,184,829.00/1,382.44
  6. Step 6: Final answer
    x = 1,580.42

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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.