Home / 5,438.18-8,148.36-4,984.28

Finding the Fourth Proportional to 5,438.18, 8,148.36 and 4,984.28

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Solution

The fourth proportional to 5,438.18, 8,148.36 and 4,984.28 is: 7,468.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.18 : 8,148.36 = 4,984.28 : x
  2. Step 2: Convert to fraction form
    5,438.18/8,148.36 = 4,984.28/x
  3. Step 3: Cross multiply
    5,438.18x = 8,148.36 × 4,984.28
  4. Step 4: Simplify right side
    5,438.18x = 40,613,707.78
  5. Step 5: Solve for x
    x = 40,613,707.78/5,438.18
  6. Step 6: Final answer
    x = 7,468.25

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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.