Home / 2,905.03-4,011.21-1,786.47

Finding the Fourth Proportional to 2,905.03, 4,011.21 and 1,786.47

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Solution

The fourth proportional to 2,905.03, 4,011.21 and 1,786.47 is: 2,466.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.03 : 4,011.21 = 1,786.47 : x
  2. Step 2: Convert to fraction form
    2,905.03/4,011.21 = 1,786.47/x
  3. Step 3: Cross multiply
    2,905.03x = 4,011.21 × 1,786.47
  4. Step 4: Simplify right side
    2,905.03x = 7,165,891.29
  5. Step 5: Solve for x
    x = 7,165,891.29/2,905.03
  6. Step 6: Final answer
    x = 2,466.72

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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.