Home / 5,430.94-8,144.30-2,312.41

Finding the Fourth Proportional to 5,430.94, 8,144.30 and 2,312.41

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Solution

The fourth proportional to 5,430.94, 8,144.30 and 2,312.41 is: 3,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.94 : 8,144.30 = 2,312.41 : x
  2. Step 2: Convert to fraction form
    5,430.94/8,144.30 = 2,312.41/x
  3. Step 3: Cross multiply
    5,430.94x = 8,144.30 × 2,312.41
  4. Step 4: Simplify right side
    5,430.94x = 18,832,960.76
  5. Step 5: Solve for x
    x = 18,832,960.76/5,430.94
  6. Step 6: Final answer
    x = 3,467.72

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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.