Home / 3,379.34-5,064.15-1,915.40

Finding the Fourth Proportional to 3,379.34, 5,064.15 and 1,915.40

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Solution

The fourth proportional to 3,379.34, 5,064.15 and 1,915.40 is: 2,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.34 : 5,064.15 = 1,915.40 : x
  2. Step 2: Convert to fraction form
    3,379.34/5,064.15 = 1,915.40/x
  3. Step 3: Cross multiply
    3,379.34x = 5,064.15 × 1,915.40
  4. Step 4: Simplify right side
    3,379.34x = 9,699,848.11
  5. Step 5: Solve for x
    x = 9,699,848.11/3,379.34
  6. Step 6: Final answer
    x = 2,870.34

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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.