Home / 2,905.67-4,008.24-1,786.20

Finding the Fourth Proportional to 2,905.67, 4,008.24 and 1,786.20

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Solution

The fourth proportional to 2,905.67, 4,008.24 and 1,786.20 is: 2,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.67 : 4,008.24 = 1,786.20 : x
  2. Step 2: Convert to fraction form
    2,905.67/4,008.24 = 1,786.20/x
  3. Step 3: Cross multiply
    2,905.67x = 4,008.24 × 1,786.20
  4. Step 4: Simplify right side
    2,905.67x = 7,159,518.29
  5. Step 5: Solve for x
    x = 7,159,518.29/2,905.67
  6. Step 6: Final answer
    x = 2,463.99

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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.