Home / 2,356.30-3,251.47-1,361.45

Finding the Fourth Proportional to 2,356.30, 3,251.47 and 1,361.45

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Solution

The fourth proportional to 2,356.30, 3,251.47 and 1,361.45 is: 1,878.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.30 : 3,251.47 = 1,361.45 : x
  2. Step 2: Convert to fraction form
    2,356.30/3,251.47 = 1,361.45/x
  3. Step 3: Cross multiply
    2,356.30x = 3,251.47 × 1,361.45
  4. Step 4: Simplify right side
    2,356.30x = 4,426,697.57
  5. Step 5: Solve for x
    x = 4,426,697.57/2,356.30
  6. Step 6: Final answer
    x = 1,878.66

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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.