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Finding the Fourth Proportional to 1,667.75, 2,507.03 and 1,547.51

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Solution

The fourth proportional to 1,667.75, 2,507.03 and 1,547.51 is: 2,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667.75 : 2,507.03 = 1,547.51 : x
  2. Step 2: Convert to fraction form
    1,667.75/2,507.03 = 1,547.51/x
  3. Step 3: Cross multiply
    1,667.75x = 2,507.03 × 1,547.51
  4. Step 4: Simplify right side
    1,667.75x = 3,879,646.26
  5. Step 5: Solve for x
    x = 3,879,646.26/1,667.75
  6. Step 6: Final answer
    x = 2,326.28

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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.