Home / 5,280.10-7,289.43-3,604.01

Finding the Fourth Proportional to 5,280.10, 7,289.43 and 3,604.01

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Solution

The fourth proportional to 5,280.10, 7,289.43 and 3,604.01 is: 4,975.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.10 : 7,289.43 = 3,604.01 : x
  2. Step 2: Convert to fraction form
    5,280.10/7,289.43 = 3,604.01/x
  3. Step 3: Cross multiply
    5,280.10x = 7,289.43 × 3,604.01
  4. Step 4: Simplify right side
    5,280.10x = 26,271,128.65
  5. Step 5: Solve for x
    x = 26,271,128.65/5,280.10
  6. Step 6: Final answer
    x = 4,975.50

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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.