Home / 4,069.40-5,615.69-2,390.49

Finding the Fourth Proportional to 4,069.40, 5,615.69 and 2,390.49

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Solution

The fourth proportional to 4,069.40, 5,615.69 and 2,390.49 is: 3,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.40 : 5,615.69 = 2,390.49 : x
  2. Step 2: Convert to fraction form
    4,069.40/5,615.69 = 2,390.49/x
  3. Step 3: Cross multiply
    4,069.40x = 5,615.69 × 2,390.49
  4. Step 4: Simplify right side
    4,069.40x = 13,424,238.84
  5. Step 5: Solve for x
    x = 13,424,238.84/4,069.40
  6. Step 6: Final answer
    x = 3,298.83

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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.