Home / 5,477.63-7,559.45-3,119.78

Finding the Fourth Proportional to 5,477.63, 7,559.45 and 3,119.78

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Solution

The fourth proportional to 5,477.63, 7,559.45 and 3,119.78 is: 4,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.63 : 7,559.45 = 3,119.78 : x
  2. Step 2: Convert to fraction form
    5,477.63/7,559.45 = 3,119.78/x
  3. Step 3: Cross multiply
    5,477.63x = 7,559.45 × 3,119.78
  4. Step 4: Simplify right side
    5,477.63x = 23,583,767.52
  5. Step 5: Solve for x
    x = 23,583,767.52/5,477.63
  6. Step 6: Final answer
    x = 4,305.47

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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.