Home / 4,845.56-6,685.80-3,079.40

Finding the Fourth Proportional to 4,845.56, 6,685.80 and 3,079.40

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Solution

The fourth proportional to 4,845.56, 6,685.80 and 3,079.40 is: 4,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.56 : 6,685.80 = 3,079.40 : x
  2. Step 2: Convert to fraction form
    4,845.56/6,685.80 = 3,079.40/x
  3. Step 3: Cross multiply
    4,845.56x = 6,685.80 × 3,079.40
  4. Step 4: Simplify right side
    4,845.56x = 20,588,252.52
  5. Step 5: Solve for x
    x = 20,588,252.52/4,845.56
  6. Step 6: Final answer
    x = 4,248.89

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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.