Home / 4,430.72-6,638.76-1,961.84

Finding the Fourth Proportional to 4,430.72, 6,638.76 and 1,961.84

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Solution

The fourth proportional to 4,430.72, 6,638.76 and 1,961.84 is: 2,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.72 : 6,638.76 = 1,961.84 : x
  2. Step 2: Convert to fraction form
    4,430.72/6,638.76 = 1,961.84/x
  3. Step 3: Cross multiply
    4,430.72x = 6,638.76 × 1,961.84
  4. Step 4: Simplify right side
    4,430.72x = 13,024,184.92
  5. Step 5: Solve for x
    x = 13,024,184.92/4,430.72
  6. Step 6: Final answer
    x = 2,939.52

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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.