Home / 1,911.02-2,631.33-1,673.60

Finding the Fourth Proportional to 1,911.02, 2,631.33 and 1,673.60

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Solution

The fourth proportional to 1,911.02, 2,631.33 and 1,673.60 is: 2,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.02 : 2,631.33 = 1,673.60 : x
  2. Step 2: Convert to fraction form
    1,911.02/2,631.33 = 1,673.60/x
  3. Step 3: Cross multiply
    1,911.02x = 2,631.33 × 1,673.60
  4. Step 4: Simplify right side
    1,911.02x = 4,403,780.73
  5. Step 5: Solve for x
    x = 4,403,780.73/1,911.02
  6. Step 6: Final answer
    x = 2,304.42

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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.