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Finding the Fourth Proportional to 1,645.39, 2,466.60 and 903.88

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Solution

The fourth proportional to 1,645.39, 2,466.60 and 903.88 is: 1,355.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.39 : 2,466.60 = 903.88 : x
  2. Step 2: Convert to fraction form
    1,645.39/2,466.60 = 903.88/x
  3. Step 3: Cross multiply
    1,645.39x = 2,466.60 × 903.88
  4. Step 4: Simplify right side
    1,645.39x = 2,229,510.41
  5. Step 5: Solve for x
    x = 2,229,510.41/1,645.39
  6. Step 6: Final answer
    x = 1,355.00

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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.