Home / 4,845.70-7,274.40-3,090.70

Finding the Fourth Proportional to 4,845.70, 7,274.40 and 3,090.70

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Solution

The fourth proportional to 4,845.70, 7,274.40 and 3,090.70 is: 4,639.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.70 : 7,274.40 = 3,090.70 : x
  2. Step 2: Convert to fraction form
    4,845.70/7,274.40 = 3,090.70/x
  3. Step 3: Cross multiply
    4,845.70x = 7,274.40 × 3,090.70
  4. Step 4: Simplify right side
    4,845.70x = 22,482,988.08
  5. Step 5: Solve for x
    x = 22,482,988.08/4,845.70
  6. Step 6: Final answer
    x = 4,639.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.