Home / 2,918.19-4,377.90-943.98

Finding the Fourth Proportional to 2,918.19, 4,377.90 and 943.98

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Solution

The fourth proportional to 2,918.19, 4,377.90 and 943.98 is: 1,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.19 : 4,377.90 = 943.98 : x
  2. Step 2: Convert to fraction form
    2,918.19/4,377.90 = 943.98/x
  3. Step 3: Cross multiply
    2,918.19x = 4,377.90 × 943.98
  4. Step 4: Simplify right side
    2,918.19x = 4,132,650.04
  5. Step 5: Solve for x
    x = 4,132,650.04/2,918.19
  6. Step 6: Final answer
    x = 1,416.17

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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.