Home / 1,115.04-1,663.08-1,051.68

Finding the Fourth Proportional to 1,115.04, 1,663.08 and 1,051.68

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Solution

The fourth proportional to 1,115.04, 1,663.08 and 1,051.68 is: 1,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115.04 : 1,663.08 = 1,051.68 : x
  2. Step 2: Convert to fraction form
    1,115.04/1,663.08 = 1,051.68/x
  3. Step 3: Cross multiply
    1,115.04x = 1,663.08 × 1,051.68
  4. Step 4: Simplify right side
    1,115.04x = 1,749,027.97
  5. Step 5: Solve for x
    x = 1,749,027.97/1,115.04
  6. Step 6: Final answer
    x = 1,568.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.