Home / 6,128.40-8,464.92-5,330.14

Finding the Fourth Proportional to 6,128.40, 8,464.92 and 5,330.14

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Solution

The fourth proportional to 6,128.40, 8,464.92 and 5,330.14 is: 7,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.40 : 8,464.92 = 5,330.14 : x
  2. Step 2: Convert to fraction form
    6,128.40/8,464.92 = 5,330.14/x
  3. Step 3: Cross multiply
    6,128.40x = 8,464.92 × 5,330.14
  4. Step 4: Simplify right side
    6,128.40x = 45,119,208.69
  5. Step 5: Solve for x
    x = 45,119,208.69/6,128.40
  6. Step 6: Final answer
    x = 7,362.31

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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.