Home / 4,955.39-7,430.40-2,178.81

Finding the Fourth Proportional to 4,955.39, 7,430.40 and 2,178.81

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Solution

The fourth proportional to 4,955.39, 7,430.40 and 2,178.81 is: 3,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.39 : 7,430.40 = 2,178.81 : x
  2. Step 2: Convert to fraction form
    4,955.39/7,430.40 = 2,178.81/x
  3. Step 3: Cross multiply
    4,955.39x = 7,430.40 × 2,178.81
  4. Step 4: Simplify right side
    4,955.39x = 16,189,429.82
  5. Step 5: Solve for x
    x = 16,189,429.82/4,955.39
  6. Step 6: Final answer
    x = 3,267.03

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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.