Home / 2,926.20-4,389.74-977.94

Finding the Fourth Proportional to 2,926.20, 4,389.74 and 977.94

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Solution

The fourth proportional to 2,926.20, 4,389.74 and 977.94 is: 1,467.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.20 : 4,389.74 = 977.94 : x
  2. Step 2: Convert to fraction form
    2,926.20/4,389.74 = 977.94/x
  3. Step 3: Cross multiply
    2,926.20x = 4,389.74 × 977.94
  4. Step 4: Simplify right side
    2,926.20x = 4,292,897.45
  5. Step 5: Solve for x
    x = 4,292,897.45/2,926.20
  6. Step 6: Final answer
    x = 1,467.06

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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.