Home / 4,784.86-6,605.40-2,794.78

Finding the Fourth Proportional to 4,784.86, 6,605.40 and 2,794.78

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Solution

The fourth proportional to 4,784.86, 6,605.40 and 2,794.78 is: 3,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.86 : 6,605.40 = 2,794.78 : x
  2. Step 2: Convert to fraction form
    4,784.86/6,605.40 = 2,794.78/x
  3. Step 3: Cross multiply
    4,784.86x = 6,605.40 × 2,794.78
  4. Step 4: Simplify right side
    4,784.86x = 18,460,639.81
  5. Step 5: Solve for x
    x = 18,460,639.81/4,784.86
  6. Step 6: Final answer
    x = 3,858.14

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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.