Home / 1,985.07-2,974.73-1,117.53

Finding the Fourth Proportional to 1,985.07, 2,974.73 and 1,117.53

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Solution

The fourth proportional to 1,985.07, 2,974.73 and 1,117.53 is: 1,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.07 : 2,974.73 = 1,117.53 : x
  2. Step 2: Convert to fraction form
    1,985.07/2,974.73 = 1,117.53/x
  3. Step 3: Cross multiply
    1,985.07x = 2,974.73 × 1,117.53
  4. Step 4: Simplify right side
    1,985.07x = 3,324,344.43
  5. Step 5: Solve for x
    x = 3,324,344.43/1,985.07
  6. Step 6: Final answer
    x = 1,674.67

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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.