Home / 2,339.42-3,225.75-1,918.45

Finding the Fourth Proportional to 2,339.42, 3,225.75 and 1,918.45

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Solution

The fourth proportional to 2,339.42, 3,225.75 and 1,918.45 is: 2,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.42 : 3,225.75 = 1,918.45 : x
  2. Step 2: Convert to fraction form
    2,339.42/3,225.75 = 1,918.45/x
  3. Step 3: Cross multiply
    2,339.42x = 3,225.75 × 1,918.45
  4. Step 4: Simplify right side
    2,339.42x = 6,188,423.96
  5. Step 5: Solve for x
    x = 6,188,423.96/2,339.42
  6. Step 6: Final answer
    x = 2,645.28

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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.