Home / 2,918.85-4,374.15-1,271.93

Finding the Fourth Proportional to 2,918.85, 4,374.15 and 1,271.93

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Solution

The fourth proportional to 2,918.85, 4,374.15 and 1,271.93 is: 1,906.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.85 : 4,374.15 = 1,271.93 : x
  2. Step 2: Convert to fraction form
    2,918.85/4,374.15 = 1,271.93/x
  3. Step 3: Cross multiply
    2,918.85x = 4,374.15 × 1,271.93
  4. Step 4: Simplify right side
    2,918.85x = 5,563,590.74
  5. Step 5: Solve for x
    x = 5,563,590.74/2,918.85
  6. Step 6: Final answer
    x = 1,906.09

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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.