Home / 4,678.79-7,018.20-1,216.04

Finding the Fourth Proportional to 4,678.79, 7,018.20 and 1,216.04

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Solution

The fourth proportional to 4,678.79, 7,018.20 and 1,216.04 is: 1,824.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.79 : 7,018.20 = 1,216.04 : x
  2. Step 2: Convert to fraction form
    4,678.79/7,018.20 = 1,216.04/x
  3. Step 3: Cross multiply
    4,678.79x = 7,018.20 × 1,216.04
  4. Step 4: Simplify right side
    4,678.79x = 8,534,429.47
  5. Step 5: Solve for x
    x = 8,534,429.47/4,678.79
  6. Step 6: Final answer
    x = 1,824.07

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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.