Home / 1,929.64-2,662.91-1,045.45

Finding the Fourth Proportional to 1,929.64, 2,662.91 and 1,045.45

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Solution

The fourth proportional to 1,929.64, 2,662.91 and 1,045.45 is: 1,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.64 : 2,662.91 = 1,045.45 : x
  2. Step 2: Convert to fraction form
    1,929.64/2,662.91 = 1,045.45/x
  3. Step 3: Cross multiply
    1,929.64x = 2,662.91 × 1,045.45
  4. Step 4: Simplify right side
    1,929.64x = 2,783,925.94
  5. Step 5: Solve for x
    x = 2,783,925.94/1,929.64
  6. Step 6: Final answer
    x = 1,442.72

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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.