Home / 1,929.36-2,662.52-1,045.16

Finding the Fourth Proportional to 1,929.36, 2,662.52 and 1,045.16

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Solution

The fourth proportional to 1,929.36, 2,662.52 and 1,045.16 is: 1,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.36 : 2,662.52 = 1,045.16 : x
  2. Step 2: Convert to fraction form
    1,929.36/2,662.52 = 1,045.16/x
  3. Step 3: Cross multiply
    1,929.36x = 2,662.52 × 1,045.16
  4. Step 4: Simplify right side
    1,929.36x = 2,782,740.86
  5. Step 5: Solve for x
    x = 2,782,740.86/1,929.36
  6. Step 6: Final answer
    x = 1,442.31

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1.5x scale

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.