Home / 1,547.07-2,135.33-957.25

Finding the Fourth Proportional to 1,547.07, 2,135.33 and 957.25

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Solution

The fourth proportional to 1,547.07, 2,135.33 and 957.25 is: 1,321.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.07 : 2,135.33 = 957.25 : x
  2. Step 2: Convert to fraction form
    1,547.07/2,135.33 = 957.25/x
  3. Step 3: Cross multiply
    1,547.07x = 2,135.33 × 957.25
  4. Step 4: Simplify right side
    1,547.07x = 2,044,044.64
  5. Step 5: Solve for x
    x = 2,044,044.64/1,547.07
  6. Step 6: Final answer
    x = 1,321.24

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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.