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Finding the Fourth Proportional to 3,009.78, 4,153.50 and 1,830.84

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Solution

The fourth proportional to 3,009.78, 4,153.50 and 1,830.84 is: 2,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.78 : 4,153.50 = 1,830.84 : x
  2. Step 2: Convert to fraction form
    3,009.78/4,153.50 = 1,830.84/x
  3. Step 3: Cross multiply
    3,009.78x = 4,153.50 × 1,830.84
  4. Step 4: Simplify right side
    3,009.78x = 7,604,393.94
  5. Step 5: Solve for x
    x = 7,604,393.94/3,009.78
  6. Step 6: Final answer
    x = 2,526.56

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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.