Home / 4,725.72-7,089.60-1,439.07

Finding the Fourth Proportional to 4,725.72, 7,089.60 and 1,439.07

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Solution

The fourth proportional to 4,725.72, 7,089.60 and 1,439.07 is: 2,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,725.72 : 7,089.60 = 1,439.07 : x
  2. Step 2: Convert to fraction form
    4,725.72/7,089.60 = 1,439.07/x
  3. Step 3: Cross multiply
    4,725.72x = 7,089.60 × 1,439.07
  4. Step 4: Simplify right side
    4,725.72x = 10,202,430.67
  5. Step 5: Solve for x
    x = 10,202,430.67/4,725.72
  6. Step 6: Final answer
    x = 2,158.92

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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.