Home / 1,368.70-2,050.31-1,040.19

Finding the Fourth Proportional to 1,368.70, 2,050.31 and 1,040.19

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Solution

The fourth proportional to 1,368.70, 2,050.31 and 1,040.19 is: 1,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368.70 : 2,050.31 = 1,040.19 : x
  2. Step 2: Convert to fraction form
    1,368.70/2,050.31 = 1,040.19/x
  3. Step 3: Cross multiply
    1,368.70x = 2,050.31 × 1,040.19
  4. Step 4: Simplify right side
    1,368.70x = 2,132,718.40
  5. Step 5: Solve for x
    x = 2,132,718.40/1,368.70
  6. Step 6: Final answer
    x = 1,558.21

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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.