Home / 2,419.40-3,340.37-1,858.85

Finding the Fourth Proportional to 2,419.40, 3,340.37 and 1,858.85

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Solution

The fourth proportional to 2,419.40, 3,340.37 and 1,858.85 is: 2,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.40 : 3,340.37 = 1,858.85 : x
  2. Step 2: Convert to fraction form
    2,419.40/3,340.37 = 1,858.85/x
  3. Step 3: Cross multiply
    2,419.40x = 3,340.37 × 1,858.85
  4. Step 4: Simplify right side
    2,419.40x = 6,209,247.25
  5. Step 5: Solve for x
    x = 6,209,247.25/2,419.40
  6. Step 6: Final answer
    x = 2,566.44

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Double scale
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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.