Home / 1,327.64-1,987.67-1,054.13

Finding the Fourth Proportional to 1,327.64, 1,987.67 and 1,054.13

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Solution

The fourth proportional to 1,327.64, 1,987.67 and 1,054.13 is: 1,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.64 : 1,987.67 = 1,054.13 : x
  2. Step 2: Convert to fraction form
    1,327.64/1,987.67 = 1,054.13/x
  3. Step 3: Cross multiply
    1,327.64x = 1,987.67 × 1,054.13
  4. Step 4: Simplify right side
    1,327.64x = 2,095,247.37
  5. Step 5: Solve for x
    x = 2,095,247.37/1,327.64
  6. Step 6: Final answer
    x = 1,578.18

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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.