Home / 1,364.32-2,045.56-1,291.26

Finding the Fourth Proportional to 1,364.32, 2,045.56 and 1,291.26

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Solution

The fourth proportional to 1,364.32, 2,045.56 and 1,291.26 is: 1,936.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.32 : 2,045.56 = 1,291.26 : x
  2. Step 2: Convert to fraction form
    1,364.32/2,045.56 = 1,291.26/x
  3. Step 3: Cross multiply
    1,364.32x = 2,045.56 × 1,291.26
  4. Step 4: Simplify right side
    1,364.32x = 2,641,349.81
  5. Step 5: Solve for x
    x = 2,641,349.81/1,364.32
  6. Step 6: Final answer
    x = 1,936.02

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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.