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Finding the Fourth Proportional to 2,291.63, 3,437.46 and 904.91

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Solution

The fourth proportional to 2,291.63, 3,437.46 and 904.91 is: 1,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.63 : 3,437.46 = 904.91 : x
  2. Step 2: Convert to fraction form
    2,291.63/3,437.46 = 904.91/x
  3. Step 3: Cross multiply
    2,291.63x = 3,437.46 × 904.91
  4. Step 4: Simplify right side
    2,291.63x = 3,110,591.93
  5. Step 5: Solve for x
    x = 3,110,591.93/2,291.63
  6. Step 6: Final answer
    x = 1,357.37

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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.