Home / 5,638.96-8,445.48-4,502.80

Finding the Fourth Proportional to 5,638.96, 8,445.48 and 4,502.80

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Solution

The fourth proportional to 5,638.96, 8,445.48 and 4,502.80 is: 6,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638.96 : 8,445.48 = 4,502.80 : x
  2. Step 2: Convert to fraction form
    5,638.96/8,445.48 = 4,502.80/x
  3. Step 3: Cross multiply
    5,638.96x = 8,445.48 × 4,502.80
  4. Step 4: Simplify right side
    5,638.96x = 38,028,307.34
  5. Step 5: Solve for x
    x = 38,028,307.34/5,638.96
  6. Step 6: Final answer
    x = 6,743.85

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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.