Home / 4,725.04-6,516.99-3,128.86

Finding the Fourth Proportional to 4,725.04, 6,516.99 and 3,128.86

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Solution

The fourth proportional to 4,725.04, 6,516.99 and 3,128.86 is: 4,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.04 : 6,516.99 = 3,128.86 : x
  2. Step 2: Convert to fraction form
    4,725.04/6,516.99 = 3,128.86/x
  3. Step 3: Cross multiply
    4,725.04x = 6,516.99 × 3,128.86
  4. Step 4: Simplify right side
    4,725.04x = 20,390,749.33
  5. Step 5: Solve for x
    x = 20,390,749.33/4,725.04
  6. Step 6: Final answer
    x = 4,315.47

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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.