Home / 6,678.60-9,215.10-4,025.40

Finding the Fourth Proportional to 6,678.60, 9,215.10 and 4,025.40

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Solution

The fourth proportional to 6,678.60, 9,215.10 and 4,025.40 is: 5,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.60 : 9,215.10 = 4,025.40 : x
  2. Step 2: Convert to fraction form
    6,678.60/9,215.10 = 4,025.40/x
  3. Step 3: Cross multiply
    6,678.60x = 9,215.10 × 4,025.40
  4. Step 4: Simplify right side
    6,678.60x = 37,094,463.54
  5. Step 5: Solve for x
    x = 37,094,463.54/6,678.60
  6. Step 6: Final answer
    x = 5,554.23

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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.