Home / 4,725.90-7,089.60-1,438.23

Finding the Fourth Proportional to 4,725.90, 7,089.60 and 1,438.23

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Solution

The fourth proportional to 4,725.90, 7,089.60 and 1,438.23 is: 2,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.90 : 7,089.60 = 1,438.23 : x
  2. Step 2: Convert to fraction form
    4,725.90/7,089.60 = 1,438.23/x
  3. Step 3: Cross multiply
    4,725.90x = 7,089.60 × 1,438.23
  4. Step 4: Simplify right side
    4,725.90x = 10,196,475.41
  5. Step 5: Solve for x
    x = 10,196,475.41/4,725.90
  6. Step 6: Final answer
    x = 2,157.57

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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.