Home / 5,416.13-8,123.16-2,640.01

Finding the Fourth Proportional to 5,416.13, 8,123.16 and 2,640.01

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Solution

The fourth proportional to 5,416.13, 8,123.16 and 2,640.01 is: 3,959.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.13 : 8,123.16 = 2,640.01 : x
  2. Step 2: Convert to fraction form
    5,416.13/8,123.16 = 2,640.01/x
  3. Step 3: Cross multiply
    5,416.13x = 8,123.16 × 2,640.01
  4. Step 4: Simplify right side
    5,416.13x = 21,445,183.02
  5. Step 5: Solve for x
    x = 21,445,183.02/5,416.13
  6. Step 6: Final answer
    x = 3,959.51

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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.