Home / 2,423.78-3,346.08-1,638.89

Finding the Fourth Proportional to 2,423.78, 3,346.08 and 1,638.89

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Solution

The fourth proportional to 2,423.78, 3,346.08 and 1,638.89 is: 2,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.78 : 3,346.08 = 1,638.89 : x
  2. Step 2: Convert to fraction form
    2,423.78/3,346.08 = 1,638.89/x
  3. Step 3: Cross multiply
    2,423.78x = 3,346.08 × 1,638.89
  4. Step 4: Simplify right side
    2,423.78x = 5,483,857.05
  5. Step 5: Solve for x
    x = 5,483,857.05/2,423.78
  6. Step 6: Final answer
    x = 2,262.52

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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.