Home / 6,128.08-9,186.40-2,429.60

Finding the Fourth Proportional to 6,128.08, 9,186.40 and 2,429.60

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Solution

The fourth proportional to 6,128.08, 9,186.40 and 2,429.60 is: 3,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.08 : 9,186.40 = 2,429.60 : x
  2. Step 2: Convert to fraction form
    6,128.08/9,186.40 = 2,429.60/x
  3. Step 3: Cross multiply
    6,128.08x = 9,186.40 × 2,429.60
  4. Step 4: Simplify right side
    6,128.08x = 22,319,277.44
  5. Step 5: Solve for x
    x = 22,319,277.44/6,128.08
  6. Step 6: Final answer
    x = 3,642.13

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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.