Home / 7,710.21-10,639.47-4,353.84

Finding the Fourth Proportional to 7,710.21, 10,639.47 and 4,353.84

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Solution

The fourth proportional to 7,710.21, 10,639.47 and 4,353.84 is: 6,007.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.21 : 10,639.47 = 4,353.84 : x
  2. Step 2: Convert to fraction form
    7,710.21/10,639.47 = 4,353.84/x
  3. Step 3: Cross multiply
    7,710.21x = 10,639.47 × 4,353.84
  4. Step 4: Simplify right side
    7,710.21x = 46,322,550.06
  5. Step 5: Solve for x
    x = 46,322,550.06/7,710.21
  6. Step 6: Final answer
    x = 6,007.95

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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.