Home / 2,352.49-3,246.47-1,290.36

Finding the Fourth Proportional to 2,352.49, 3,246.47 and 1,290.36

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Solution

The fourth proportional to 2,352.49, 3,246.47 and 1,290.36 is: 1,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,352.49 : 3,246.47 = 1,290.36 : x
  2. Step 2: Convert to fraction form
    2,352.49/3,246.47 = 1,290.36/x
  3. Step 3: Cross multiply
    2,352.49x = 3,246.47 × 1,290.36
  4. Step 4: Simplify right side
    2,352.49x = 4,189,115.03
  5. Step 5: Solve for x
    x = 4,189,115.03/2,352.49
  6. Step 6: Final answer
    x = 1,780.72

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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.