Home / 1,324.84-1,986.30-675.08

Finding the Fourth Proportional to 1,324.84, 1,986.30 and 675.08

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Solution

The fourth proportional to 1,324.84, 1,986.30 and 675.08 is: 1,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.84 : 1,986.30 = 675.08 : x
  2. Step 2: Convert to fraction form
    1,324.84/1,986.30 = 675.08/x
  3. Step 3: Cross multiply
    1,324.84x = 1,986.30 × 675.08
  4. Step 4: Simplify right side
    1,324.84x = 1,340,911.40
  5. Step 5: Solve for x
    x = 1,340,911.40/1,324.84
  6. Step 6: Final answer
    x = 1,012.13

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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.