Home / 2,184.60-3,014.78-1,240.36

Finding the Fourth Proportional to 2,184.60, 3,014.78 and 1,240.36

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Solution

The fourth proportional to 2,184.60, 3,014.78 and 1,240.36 is: 1,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.60 : 3,014.78 = 1,240.36 : x
  2. Step 2: Convert to fraction form
    2,184.60/3,014.78 = 1,240.36/x
  3. Step 3: Cross multiply
    2,184.60x = 3,014.78 × 1,240.36
  4. Step 4: Simplify right side
    2,184.60x = 3,739,412.52
  5. Step 5: Solve for x
    x = 3,739,412.52/2,184.60
  6. Step 6: Final answer
    x = 1,711.71

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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.