Home / 1,435.14-1,981.38-1,102.92

Finding the Fourth Proportional to 1,435.14, 1,981.38 and 1,102.92

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Solution

The fourth proportional to 1,435.14, 1,981.38 and 1,102.92 is: 1,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.14 : 1,981.38 = 1,102.92 : x
  2. Step 2: Convert to fraction form
    1,435.14/1,981.38 = 1,102.92/x
  3. Step 3: Cross multiply
    1,435.14x = 1,981.38 × 1,102.92
  4. Step 4: Simplify right side
    1,435.14x = 2,185,303.63
  5. Step 5: Solve for x
    x = 2,185,303.63/1,435.14
  6. Step 6: Final answer
    x = 1,522.71

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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.