Home / 3,109.04-4,285.56-3,047.60

Finding the Fourth Proportional to 3,109.04, 4,285.56 and 3,047.60

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Solution

The fourth proportional to 3,109.04, 4,285.56 and 3,047.60 is: 4,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.04 : 4,285.56 = 3,047.60 : x
  2. Step 2: Convert to fraction form
    3,109.04/4,285.56 = 3,047.60/x
  3. Step 3: Cross multiply
    3,109.04x = 4,285.56 × 3,047.60
  4. Step 4: Simplify right side
    3,109.04x = 13,060,672.66
  5. Step 5: Solve for x
    x = 13,060,672.66/3,109.04
  6. Step 6: Final answer
    x = 4,200.87

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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.