Home / 6,434.47-8,879.55-3,783.40

Finding the Fourth Proportional to 6,434.47, 8,879.55 and 3,783.40

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Solution

The fourth proportional to 6,434.47, 8,879.55 and 3,783.40 is: 5,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.47 : 8,879.55 = 3,783.40 : x
  2. Step 2: Convert to fraction form
    6,434.47/8,879.55 = 3,783.40/x
  3. Step 3: Cross multiply
    6,434.47x = 8,879.55 × 3,783.40
  4. Step 4: Simplify right side
    6,434.47x = 33,594,889.47
  5. Step 5: Solve for x
    x = 33,594,889.47/6,434.47
  6. Step 6: Final answer
    x = 5,221.08

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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.