Home / 5,289.51-7,928.68-1,776.18

Finding the Fourth Proportional to 5,289.51, 7,928.68 and 1,776.18

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Solution

The fourth proportional to 5,289.51, 7,928.68 and 1,776.18 is: 2,662.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.51 : 7,928.68 = 1,776.18 : x
  2. Step 2: Convert to fraction form
    5,289.51/7,928.68 = 1,776.18/x
  3. Step 3: Cross multiply
    5,289.51x = 7,928.68 × 1,776.18
  4. Step 4: Simplify right side
    5,289.51x = 14,082,762.84
  5. Step 5: Solve for x
    x = 14,082,762.84/5,289.51
  6. Step 6: Final answer
    x = 2,662.39

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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.