Home / 1,785.20-2,463.23-999.10

Finding the Fourth Proportional to 1,785.20, 2,463.23 and 999.10

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Solution

The fourth proportional to 1,785.20, 2,463.23 and 999.10 is: 1,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.20 : 2,463.23 = 999.10 : x
  2. Step 2: Convert to fraction form
    1,785.20/2,463.23 = 999.10/x
  3. Step 3: Cross multiply
    1,785.20x = 2,463.23 × 999.10
  4. Step 4: Simplify right side
    1,785.20x = 2,461,008.10
  5. Step 5: Solve for x
    x = 2,461,008.10/1,785.20
  6. Step 6: Final answer
    x = 1,378.56

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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.