Home / 6,897.84-10,340.70-2,740.78

Finding the Fourth Proportional to 6,897.84, 10,340.70 and 2,740.78

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Solution

The fourth proportional to 6,897.84, 10,340.70 and 2,740.78 is: 4,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.84 : 10,340.70 = 2,740.78 : x
  2. Step 2: Convert to fraction form
    6,897.84/10,340.70 = 2,740.78/x
  3. Step 3: Cross multiply
    6,897.84x = 10,340.70 × 2,740.78
  4. Step 4: Simplify right side
    6,897.84x = 28,341,583.75
  5. Step 5: Solve for x
    x = 28,341,583.75/6,897.84
  6. Step 6: Final answer
    x = 4,108.76

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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.