Home / 1,372.64-2,054.15-983.07

Finding the Fourth Proportional to 1,372.64, 2,054.15 and 983.07

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Solution

The fourth proportional to 1,372.64, 2,054.15 and 983.07 is: 1,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.64 : 2,054.15 = 983.07 : x
  2. Step 2: Convert to fraction form
    1,372.64/2,054.15 = 983.07/x
  3. Step 3: Cross multiply
    1,372.64x = 2,054.15 × 983.07
  4. Step 4: Simplify right side
    1,372.64x = 2,019,368.33
  5. Step 5: Solve for x
    x = 2,019,368.33/1,372.64
  6. Step 6: Final answer
    x = 1,471.16

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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.