Home / 3,470.84-4,788.58-1,977.69

Finding the Fourth Proportional to 3,470.84, 4,788.58 and 1,977.69

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Solution

The fourth proportional to 3,470.84, 4,788.58 and 1,977.69 is: 2,728.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.84 : 4,788.58 = 1,977.69 : x
  2. Step 2: Convert to fraction form
    3,470.84/4,788.58 = 1,977.69/x
  3. Step 3: Cross multiply
    3,470.84x = 4,788.58 × 1,977.69
  4. Step 4: Simplify right side
    3,470.84x = 9,470,332.81
  5. Step 5: Solve for x
    x = 9,470,332.81/3,470.84
  6. Step 6: Final answer
    x = 2,728.54

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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.