Home / 6,445.96-8,895-3,612.84

Finding the Fourth Proportional to 6,445.96, 8,895 and 3,612.84

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Solution

The fourth proportional to 6,445.96, 8,895 and 3,612.84 is: 4,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.96 : 8,895 = 3,612.84 : x
  2. Step 2: Convert to fraction form
    6,445.96/8,895 = 3,612.84/x
  3. Step 3: Cross multiply
    6,445.96x = 8,895 × 3,612.84
  4. Step 4: Simplify right side
    6,445.96x = 32,136,211.80
  5. Step 5: Solve for x
    x = 32,136,211.80/6,445.96
  6. Step 6: Final answer
    x = 4,985.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.