Home / 5,270.84-7,901.60-1,984.07

Finding the Fourth Proportional to 5,270.84, 7,901.60 and 1,984.07

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Solution

The fourth proportional to 5,270.84, 7,901.60 and 1,984.07 is: 2,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.84 : 7,901.60 = 1,984.07 : x
  2. Step 2: Convert to fraction form
    5,270.84/7,901.60 = 1,984.07/x
  3. Step 3: Cross multiply
    5,270.84x = 7,901.60 × 1,984.07
  4. Step 4: Simplify right side
    5,270.84x = 15,677,278.08
  5. Step 5: Solve for x
    x = 15,677,278.08/5,270.84
  6. Step 6: Final answer
    x = 2,974.34

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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.