Home / 1,628.10-2,440.23-1,340.10

Finding the Fourth Proportional to 1,628.10, 2,440.23 and 1,340.10

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Solution

The fourth proportional to 1,628.10, 2,440.23 and 1,340.10 is: 2,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.10 : 2,440.23 = 1,340.10 : x
  2. Step 2: Convert to fraction form
    1,628.10/2,440.23 = 1,340.10/x
  3. Step 3: Cross multiply
    1,628.10x = 2,440.23 × 1,340.10
  4. Step 4: Simplify right side
    1,628.10x = 3,270,152.22
  5. Step 5: Solve for x
    x = 3,270,152.22/1,628.10
  6. Step 6: Final answer
    x = 2,008.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.