Home / 4,914.80-6,784.74-2,897.60

Finding the Fourth Proportional to 4,914.80, 6,784.74 and 2,897.60

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Solution

The fourth proportional to 4,914.80, 6,784.74 and 2,897.60 is: 4,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.80 : 6,784.74 = 2,897.60 : x
  2. Step 2: Convert to fraction form
    4,914.80/6,784.74 = 2,897.60/x
  3. Step 3: Cross multiply
    4,914.80x = 6,784.74 × 2,897.60
  4. Step 4: Simplify right side
    4,914.80x = 19,659,428.70
  5. Step 5: Solve for x
    x = 19,659,428.70/4,914.80
  6. Step 6: Final answer
    x = 4,000.05

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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.