Home / 7,828.81-10,800.99-4,469.20

Finding the Fourth Proportional to 7,828.81, 10,800.99 and 4,469.20

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Solution

The fourth proportional to 7,828.81, 10,800.99 and 4,469.20 is: 6,165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.81 : 10,800.99 = 4,469.20 : x
  2. Step 2: Convert to fraction form
    7,828.81/10,800.99 = 4,469.20/x
  3. Step 3: Cross multiply
    7,828.81x = 10,800.99 × 4,469.20
  4. Step 4: Simplify right side
    7,828.81x = 48,271,784.51
  5. Step 5: Solve for x
    x = 48,271,784.51/7,828.81
  6. Step 6: Final answer
    x = 6,165.92

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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.