Home / 4,378.40-6,567.60-2,074.40

Finding the Fourth Proportional to 4,378.40, 6,567.60 and 2,074.40

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Solution

The fourth proportional to 4,378.40, 6,567.60 and 2,074.40 is: 3,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.40 : 6,567.60 = 2,074.40 : x
  2. Step 2: Convert to fraction form
    4,378.40/6,567.60 = 2,074.40/x
  3. Step 3: Cross multiply
    4,378.40x = 6,567.60 × 2,074.40
  4. Step 4: Simplify right side
    4,378.40x = 13,623,829.44
  5. Step 5: Solve for x
    x = 13,623,829.44/4,378.40
  6. Step 6: Final answer
    x = 3,111.60

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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.