Home / 2,905.09-4,009.48-1,646.28

Finding the Fourth Proportional to 2,905.09, 4,009.48 and 1,646.28

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Solution

The fourth proportional to 2,905.09, 4,009.48 and 1,646.28 is: 2,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.09 : 4,009.48 = 1,646.28 : x
  2. Step 2: Convert to fraction form
    2,905.09/4,009.48 = 1,646.28/x
  3. Step 3: Cross multiply
    2,905.09x = 4,009.48 × 1,646.28
  4. Step 4: Simplify right side
    2,905.09x = 6,600,722.62
  5. Step 5: Solve for x
    x = 6,600,722.62/2,905.09
  6. Step 6: Final answer
    x = 2,272.13

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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.