Home / 2,440.08-3,367.44-1,392.30

Finding the Fourth Proportional to 2,440.08, 3,367.44 and 1,392.30

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Solution

The fourth proportional to 2,440.08, 3,367.44 and 1,392.30 is: 1,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.08 : 3,367.44 = 1,392.30 : x
  2. Step 2: Convert to fraction form
    2,440.08/3,367.44 = 1,392.30/x
  3. Step 3: Cross multiply
    2,440.08x = 3,367.44 × 1,392.30
  4. Step 4: Simplify right side
    2,440.08x = 4,688,486.71
  5. Step 5: Solve for x
    x = 4,688,486.71/2,440.08
  6. Step 6: Final answer
    x = 1,921.45

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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.