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Finding the Fourth Proportional to 2,984.31, 4,476.42 and 904.23

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Solution

The fourth proportional to 2,984.31, 4,476.42 and 904.23 is: 1,356.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.31 : 4,476.42 = 904.23 : x
  2. Step 2: Convert to fraction form
    2,984.31/4,476.42 = 904.23/x
  3. Step 3: Cross multiply
    2,984.31x = 4,476.42 × 904.23
  4. Step 4: Simplify right side
    2,984.31x = 4,047,713.26
  5. Step 5: Solve for x
    x = 4,047,713.26/2,984.31
  6. Step 6: Final answer
    x = 1,356.33

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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.