Home / 4,725.34-7,089.09-1,438.90

Finding the Fourth Proportional to 4,725.34, 7,089.09 and 1,438.90

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Solution

The fourth proportional to 4,725.34, 7,089.09 and 1,438.90 is: 2,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.34 : 7,089.09 = 1,438.90 : x
  2. Step 2: Convert to fraction form
    4,725.34/7,089.09 = 1,438.90/x
  3. Step 3: Cross multiply
    4,725.34x = 7,089.09 × 1,438.90
  4. Step 4: Simplify right side
    4,725.34x = 10,200,491.60
  5. Step 5: Solve for x
    x = 10,200,491.60/4,725.34
  6. Step 6: Final answer
    x = 2,158.68

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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.