Home / 4,261.19-6,391.98-1,918.67

Finding the Fourth Proportional to 4,261.19, 6,391.98 and 1,918.67

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Solution

The fourth proportional to 4,261.19, 6,391.98 and 1,918.67 is: 2,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.19 : 6,391.98 = 1,918.67 : x
  2. Step 2: Convert to fraction form
    4,261.19/6,391.98 = 1,918.67/x
  3. Step 3: Cross multiply
    4,261.19x = 6,391.98 × 1,918.67
  4. Step 4: Simplify right side
    4,261.19x = 12,264,068.31
  5. Step 5: Solve for x
    x = 12,264,068.31/4,261.19
  6. Step 6: Final answer
    x = 2,878.09

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1.5x scale

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.