Home / 2,343.40-3,228.26-1,970.39

Finding the Fourth Proportional to 2,343.40, 3,228.26 and 1,970.39

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Solution

The fourth proportional to 2,343.40, 3,228.26 and 1,970.39 is: 2,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.40 : 3,228.26 = 1,970.39 : x
  2. Step 2: Convert to fraction form
    2,343.40/3,228.26 = 1,970.39/x
  3. Step 3: Cross multiply
    2,343.40x = 3,228.26 × 1,970.39
  4. Step 4: Simplify right side
    2,343.40x = 6,360,929.44
  5. Step 5: Solve for x
    x = 6,360,929.44/2,343.40
  6. Step 6: Final answer
    x = 2,714.40

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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.