Home / 1,530.18-2,111.82-1,436.34

Finding the Fourth Proportional to 1,530.18, 2,111.82 and 1,436.34

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Solution

The fourth proportional to 1,530.18, 2,111.82 and 1,436.34 is: 1,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.18 : 2,111.82 = 1,436.34 : x
  2. Step 2: Convert to fraction form
    1,530.18/2,111.82 = 1,436.34/x
  3. Step 3: Cross multiply
    1,530.18x = 2,111.82 × 1,436.34
  4. Step 4: Simplify right side
    1,530.18x = 3,033,291.54
  5. Step 5: Solve for x
    x = 3,033,291.54/1,530.18
  6. Step 6: Final answer
    x = 1,982.31

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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.