Home / 2,420.49-3,340.09-1,358.07

Finding the Fourth Proportional to 2,420.49, 3,340.09 and 1,358.07

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Solution

The fourth proportional to 2,420.49, 3,340.09 and 1,358.07 is: 1,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.49 : 3,340.09 = 1,358.07 : x
  2. Step 2: Convert to fraction form
    2,420.49/3,340.09 = 1,358.07/x
  3. Step 3: Cross multiply
    2,420.49x = 3,340.09 × 1,358.07
  4. Step 4: Simplify right side
    2,420.49x = 4,536,076.03
  5. Step 5: Solve for x
    x = 4,536,076.03/2,420.49
  6. Step 6: Final answer
    x = 1,874.03

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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.