Home / 1,672.23-2,309.46-1,488.99

Finding the Fourth Proportional to 1,672.23, 2,309.46 and 1,488.99

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Solution

The fourth proportional to 1,672.23, 2,309.46 and 1,488.99 is: 2,056.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.23 : 2,309.46 = 1,488.99 : x
  2. Step 2: Convert to fraction form
    1,672.23/2,309.46 = 1,488.99/x
  3. Step 3: Cross multiply
    1,672.23x = 2,309.46 × 1,488.99
  4. Step 4: Simplify right side
    1,672.23x = 3,438,762.85
  5. Step 5: Solve for x
    x = 3,438,762.85/1,672.23
  6. Step 6: Final answer
    x = 2,056.39

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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.