Home / 3,455.40-4,768.35-1,883.46

Finding the Fourth Proportional to 3,455.40, 4,768.35 and 1,883.46

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Solution

The fourth proportional to 3,455.40, 4,768.35 and 1,883.46 is: 2,599.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.40 : 4,768.35 = 1,883.46 : x
  2. Step 2: Convert to fraction form
    3,455.40/4,768.35 = 1,883.46/x
  3. Step 3: Cross multiply
    3,455.40x = 4,768.35 × 1,883.46
  4. Step 4: Simplify right side
    3,455.40x = 8,980,996.49
  5. Step 5: Solve for x
    x = 8,980,996.49/3,455.40
  6. Step 6: Final answer
    x = 2,599.12

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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.