Home / 5,698.34-7,863.48-3,180.40

Finding the Fourth Proportional to 5,698.34, 7,863.48 and 3,180.40

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Solution

The fourth proportional to 5,698.34, 7,863.48 and 3,180.40 is: 4,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.34 : 7,863.48 = 3,180.40 : x
  2. Step 2: Convert to fraction form
    5,698.34/7,863.48 = 3,180.40/x
  3. Step 3: Cross multiply
    5,698.34x = 7,863.48 × 3,180.40
  4. Step 4: Simplify right side
    5,698.34x = 25,009,011.79
  5. Step 5: Solve for x
    x = 25,009,011.79/5,698.34
  6. Step 6: Final answer
    x = 4,388.82

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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.