Home / 1,489.03-2,054.29-957.84

Finding the Fourth Proportional to 1,489.03, 2,054.29 and 957.84

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Solution

The fourth proportional to 1,489.03, 2,054.29 and 957.84 is: 1,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.03 : 2,054.29 = 957.84 : x
  2. Step 2: Convert to fraction form
    1,489.03/2,054.29 = 957.84/x
  3. Step 3: Cross multiply
    1,489.03x = 2,054.29 × 957.84
  4. Step 4: Simplify right side
    1,489.03x = 1,967,681.13
  5. Step 5: Solve for x
    x = 1,967,681.13/1,489.03
  6. Step 6: Final answer
    x = 1,321.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.