Home / 5,438.02-8,160.28-1,975.54

Finding the Fourth Proportional to 5,438.02, 8,160.28 and 1,975.54

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Solution

The fourth proportional to 5,438.02, 8,160.28 and 1,975.54 is: 2,964.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.02 : 8,160.28 = 1,975.54 : x
  2. Step 2: Convert to fraction form
    5,438.02/8,160.28 = 1,975.54/x
  3. Step 3: Cross multiply
    5,438.02x = 8,160.28 × 1,975.54
  4. Step 4: Simplify right side
    5,438.02x = 16,120,959.55
  5. Step 5: Solve for x
    x = 16,120,959.55/5,438.02
  6. Step 6: Final answer
    x = 2,964.49

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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.