Home / 1,498.23-2,068.87-939.67

Finding the Fourth Proportional to 1,498.23, 2,068.87 and 939.67

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Solution

The fourth proportional to 1,498.23, 2,068.87 and 939.67 is: 1,297.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498.23 : 2,068.87 = 939.67 : x
  2. Step 2: Convert to fraction form
    1,498.23/2,068.87 = 939.67/x
  3. Step 3: Cross multiply
    1,498.23x = 2,068.87 × 939.67
  4. Step 4: Simplify right side
    1,498.23x = 1,944,055.07
  5. Step 5: Solve for x
    x = 1,944,055.07/1,498.23
  6. Step 6: Final answer
    x = 1,297.57

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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.