Home / 6,529.12-9,783.60-3,891.40

Finding the Fourth Proportional to 6,529.12, 9,783.60 and 3,891.40

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Solution

The fourth proportional to 6,529.12, 9,783.60 and 3,891.40 is: 5,831.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,529.12 : 9,783.60 = 3,891.40 : x
  2. Step 2: Convert to fraction form
    6,529.12/9,783.60 = 3,891.40/x
  3. Step 3: Cross multiply
    6,529.12x = 9,783.60 × 3,891.40
  4. Step 4: Simplify right side
    6,529.12x = 38,071,901.04
  5. Step 5: Solve for x
    x = 38,071,901.04/6,529.12
  6. Step 6: Final answer
    x = 5,831.09

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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.