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Finding the Fourth Proportional to 6,240.49, 9,360.12 and 1,857.99

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Solution

The fourth proportional to 6,240.49, 9,360.12 and 1,857.99 is: 2,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.49 : 9,360.12 = 1,857.99 : x
  2. Step 2: Convert to fraction form
    6,240.49/9,360.12 = 1,857.99/x
  3. Step 3: Cross multiply
    6,240.49x = 9,360.12 × 1,857.99
  4. Step 4: Simplify right side
    6,240.49x = 17,390,998.78
  5. Step 5: Solve for x
    x = 17,390,998.78/6,240.49
  6. Step 6: Final answer
    x = 2,786.80

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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.