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Finding the Fourth Proportional to 1,448.19, 1,998 and 888.23

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Solution

The fourth proportional to 1,448.19, 1,998 and 888.23 is: 1,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.19 : 1,998 = 888.23 : x
  2. Step 2: Convert to fraction form
    1,448.19/1,998 = 888.23/x
  3. Step 3: Cross multiply
    1,448.19x = 1,998 × 888.23
  4. Step 4: Simplify right side
    1,448.19x = 1,774,688.54
  5. Step 5: Solve for x
    x = 1,774,688.54/1,448.19
  6. Step 6: Final answer
    x = 1,225.45

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Double scale
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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.