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Finding the Fourth Proportional to 6,300.30, 9,451.80 and 1,918.20

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Solution

The fourth proportional to 6,300.30, 9,451.80 and 1,918.20 is: 2,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,300.30 : 9,451.80 = 1,918.20 : x
  2. Step 2: Convert to fraction form
    6,300.30/9,451.80 = 1,918.20/x
  3. Step 3: Cross multiply
    6,300.30x = 9,451.80 × 1,918.20
  4. Step 4: Simplify right side
    6,300.30x = 18,130,442.76
  5. Step 5: Solve for x
    x = 18,130,442.76/6,300.30
  6. Step 6: Final answer
    x = 2,877.71

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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.