Home / 1,929.16-2,662.26-1,045

Finding the Fourth Proportional to 1,929.16, 2,662.26 and 1,045

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Solution

The fourth proportional to 1,929.16, 2,662.26 and 1,045 is: 1,442.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.16 : 2,662.26 = 1,045 : x
  2. Step 2: Convert to fraction form
    1,929.16/2,662.26 = 1,045/x
  3. Step 3: Cross multiply
    1,929.16x = 2,662.26 × 1,045
  4. Step 4: Simplify right side
    1,929.16x = 2,782,061.70
  5. Step 5: Solve for x
    x = 2,782,061.70/1,929.16
  6. Step 6: Final answer
    x = 1,442.11

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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.