Home / 4,077.78-5,628.44-2,399.72

Finding the Fourth Proportional to 4,077.78, 5,628.44 and 2,399.72

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Solution

The fourth proportional to 4,077.78, 5,628.44 and 2,399.72 is: 3,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.78 : 5,628.44 = 2,399.72 : x
  2. Step 2: Convert to fraction form
    4,077.78/5,628.44 = 2,399.72/x
  3. Step 3: Cross multiply
    4,077.78x = 5,628.44 × 2,399.72
  4. Step 4: Simplify right side
    4,077.78x = 13,506,668.04
  5. Step 5: Solve for x
    x = 13,506,668.04/4,077.78
  6. Step 6: Final answer
    x = 3,312.26

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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.