Home / 1,674.07-2,507.76-1,328.00

Finding the Fourth Proportional to 1,674.07, 2,507.76 and 1,328.00

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Solution

The fourth proportional to 1,674.07, 2,507.76 and 1,328.00 is: 1,989.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,674.07 : 2,507.76 = 1,328.00 : x
  2. Step 2: Convert to fraction form
    1,674.07/2,507.76 = 1,328.00/x
  3. Step 3: Cross multiply
    1,674.07x = 2,507.76 × 1,328.00
  4. Step 4: Simplify right side
    1,674.07x = 3,330,292.74
  5. Step 5: Solve for x
    x = 3,330,292.74/1,674.07
  6. Step 6: Final answer
    x = 1,989.34

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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.