Home / 2,905.06-4,009.63-1,786.96

Finding the Fourth Proportional to 2,905.06, 4,009.63 and 1,786.96

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Solution

The fourth proportional to 2,905.06, 4,009.63 and 1,786.96 is: 2,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.06 : 4,009.63 = 1,786.96 : x
  2. Step 2: Convert to fraction form
    2,905.06/4,009.63 = 1,786.96/x
  3. Step 3: Cross multiply
    2,905.06x = 4,009.63 × 1,786.96
  4. Step 4: Simplify right side
    2,905.06x = 7,165,048.42
  5. Step 5: Solve for x
    x = 7,165,048.42/2,905.06
  6. Step 6: Final answer
    x = 2,466.40

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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.