Home / 4,392.78-6,587.65-1,271.95

Finding the Fourth Proportional to 4,392.78, 6,587.65 and 1,271.95

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Solution

The fourth proportional to 4,392.78, 6,587.65 and 1,271.95 is: 1,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.78 : 6,587.65 = 1,271.95 : x
  2. Step 2: Convert to fraction form
    4,392.78/6,587.65 = 1,271.95/x
  3. Step 3: Cross multiply
    4,392.78x = 6,587.65 × 1,271.95
  4. Step 4: Simplify right side
    4,392.78x = 8,379,144.18
  5. Step 5: Solve for x
    x = 8,379,144.18/4,392.78
  6. Step 6: Final answer
    x = 1,907.48

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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.