Home / 1,072.19-1,485.21-1,050.32

Finding the Fourth Proportional to 1,072.19, 1,485.21 and 1,050.32

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Solution

The fourth proportional to 1,072.19, 1,485.21 and 1,050.32 is: 1,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072.19 : 1,485.21 = 1,050.32 : x
  2. Step 2: Convert to fraction form
    1,072.19/1,485.21 = 1,050.32/x
  3. Step 3: Cross multiply
    1,072.19x = 1,485.21 × 1,050.32
  4. Step 4: Simplify right side
    1,072.19x = 1,559,947.51
  5. Step 5: Solve for x
    x = 1,559,947.51/1,072.19
  6. Step 6: Final answer
    x = 1,454.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.