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Finding the Fourth Proportional to 2,984.28, 4,476.42 and 904.26

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Solution

The fourth proportional to 2,984.28, 4,476.42 and 904.26 is: 1,356.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.28 : 4,476.42 = 904.26 : x
  2. Step 2: Convert to fraction form
    2,984.28/4,476.42 = 904.26/x
  3. Step 3: Cross multiply
    2,984.28x = 4,476.42 × 904.26
  4. Step 4: Simplify right side
    2,984.28x = 4,047,847.55
  5. Step 5: Solve for x
    x = 4,047,847.55/2,984.28
  6. Step 6: Final answer
    x = 1,356.39

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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.