Home / 5,613.83-8,420.76-2,103.70

Finding the Fourth Proportional to 5,613.83, 8,420.76 and 2,103.70

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Solution

The fourth proportional to 5,613.83, 8,420.76 and 2,103.70 is: 3,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.83 : 8,420.76 = 2,103.70 : x
  2. Step 2: Convert to fraction form
    5,613.83/8,420.76 = 2,103.70/x
  3. Step 3: Cross multiply
    5,613.83x = 8,420.76 × 2,103.70
  4. Step 4: Simplify right side
    5,613.83x = 17,714,752.81
  5. Step 5: Solve for x
    x = 17,714,752.81/5,613.83
  6. Step 6: Final answer
    x = 3,155.56

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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.