Home / 2,789-3,848.82-1,547.24

Finding the Fourth Proportional to 2,789, 3,848.82 and 1,547.24

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Solution

The fourth proportional to 2,789, 3,848.82 and 1,547.24 is: 2,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789 : 3,848.82 = 1,547.24 : x
  2. Step 2: Convert to fraction form
    2,789/3,848.82 = 1,547.24/x
  3. Step 3: Cross multiply
    2,789x = 3,848.82 × 1,547.24
  4. Step 4: Simplify right side
    2,789x = 5,955,048.26
  5. Step 5: Solve for x
    x = 5,955,048.26/2,789
  6. Step 6: Final answer
    x = 2,135.19

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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.