Home / 4,212.23-5,810.40-2,640.02

Finding the Fourth Proportional to 4,212.23, 5,810.40 and 2,640.02

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Solution

The fourth proportional to 4,212.23, 5,810.40 and 2,640.02 is: 3,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.23 : 5,810.40 = 2,640.02 : x
  2. Step 2: Convert to fraction form
    4,212.23/5,810.40 = 2,640.02/x
  3. Step 3: Cross multiply
    4,212.23x = 5,810.40 × 2,640.02
  4. Step 4: Simplify right side
    4,212.23x = 15,339,543.16
  5. Step 5: Solve for x
    x = 15,339,543.16/4,212.23
  6. Step 6: Final answer
    x = 3,641.67

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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.