Home / 4,289.58-6,429.78-2,807.01

Finding the Fourth Proportional to 4,289.58, 6,429.78 and 2,807.01

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Solution

The fourth proportional to 4,289.58, 6,429.78 and 2,807.01 is: 4,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.58 : 6,429.78 = 2,807.01 : x
  2. Step 2: Convert to fraction form
    4,289.58/6,429.78 = 2,807.01/x
  3. Step 3: Cross multiply
    4,289.58x = 6,429.78 × 2,807.01
  4. Step 4: Simplify right side
    4,289.58x = 18,048,456.76
  5. Step 5: Solve for x
    x = 18,048,456.76/4,289.58
  6. Step 6: Final answer
    x = 4,207.51

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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.