Home / 1,908.21-2,632.35-1,574.70

Finding the Fourth Proportional to 1,908.21, 2,632.35 and 1,574.70

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Solution

The fourth proportional to 1,908.21, 2,632.35 and 1,574.70 is: 2,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.21 : 2,632.35 = 1,574.70 : x
  2. Step 2: Convert to fraction form
    1,908.21/2,632.35 = 1,574.70/x
  3. Step 3: Cross multiply
    1,908.21x = 2,632.35 × 1,574.70
  4. Step 4: Simplify right side
    1,908.21x = 4,145,161.55
  5. Step 5: Solve for x
    x = 4,145,161.55/1,908.21
  6. Step 6: Final answer
    x = 2,172.28

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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.