Home / 6,666.37-9,199.22-4,148.40

Finding the Fourth Proportional to 6,666.37, 9,199.22 and 4,148.40

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Solution

The fourth proportional to 6,666.37, 9,199.22 and 4,148.40 is: 5,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.37 : 9,199.22 = 4,148.40 : x
  2. Step 2: Convert to fraction form
    6,666.37/9,199.22 = 4,148.40/x
  3. Step 3: Cross multiply
    6,666.37x = 9,199.22 × 4,148.40
  4. Step 4: Simplify right side
    6,666.37x = 38,162,023.51
  5. Step 5: Solve for x
    x = 38,162,023.51/6,666.37
  6. Step 6: Final answer
    x = 5,724.56

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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.