Home / 1,187.48-1,639.49-1,062.93

Finding the Fourth Proportional to 1,187.48, 1,639.49 and 1,062.93

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Solution

The fourth proportional to 1,187.48, 1,639.49 and 1,062.93 is: 1,467.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187.48 : 1,639.49 = 1,062.93 : x
  2. Step 2: Convert to fraction form
    1,187.48/1,639.49 = 1,062.93/x
  3. Step 3: Cross multiply
    1,187.48x = 1,639.49 × 1,062.93
  4. Step 4: Simplify right side
    1,187.48x = 1,742,663.11
  5. Step 5: Solve for x
    x = 1,742,663.11/1,187.48
  6. Step 6: Final answer
    x = 1,467.53

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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.