Home / 3,109.01-4,290.45-1,783.04

Finding the Fourth Proportional to 3,109.01, 4,290.45 and 1,783.04

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Solution

The fourth proportional to 3,109.01, 4,290.45 and 1,783.04 is: 2,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.01 : 4,290.45 = 1,783.04 : x
  2. Step 2: Convert to fraction form
    3,109.01/4,290.45 = 1,783.04/x
  3. Step 3: Cross multiply
    3,109.01x = 4,290.45 × 1,783.04
  4. Step 4: Simplify right side
    3,109.01x = 7,650,043.97
  5. Step 5: Solve for x
    x = 7,650,043.97/3,109.01
  6. Step 6: Final answer
    x = 2,460.60

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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.