Home / 3,109.51-4,291.14-1,712.26

Finding the Fourth Proportional to 3,109.51, 4,291.14 and 1,712.26

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Solution

The fourth proportional to 3,109.51, 4,291.14 and 1,712.26 is: 2,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.51 : 4,291.14 = 1,712.26 : x
  2. Step 2: Convert to fraction form
    3,109.51/4,291.14 = 1,712.26/x
  3. Step 3: Cross multiply
    3,109.51x = 4,291.14 × 1,712.26
  4. Step 4: Simplify right side
    3,109.51x = 7,347,547.38
  5. Step 5: Solve for x
    x = 7,347,547.38/3,109.51
  6. Step 6: Final answer
    x = 2,362.93

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1.5x scale

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.