Home / 1,534.65-2,118.23-945.68

Finding the Fourth Proportional to 1,534.65, 2,118.23 and 945.68

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Solution

The fourth proportional to 1,534.65, 2,118.23 and 945.68 is: 1,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.65 : 2,118.23 = 945.68 : x
  2. Step 2: Convert to fraction form
    1,534.65/2,118.23 = 945.68/x
  3. Step 3: Cross multiply
    1,534.65x = 2,118.23 × 945.68
  4. Step 4: Simplify right side
    1,534.65x = 2,003,167.75
  5. Step 5: Solve for x
    x = 2,003,167.75/1,534.65
  6. Step 6: Final answer
    x = 1,305.29

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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.