Home / 1,646.41-2,272.11-900.35

Finding the Fourth Proportional to 1,646.41, 2,272.11 and 900.35

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Solution

The fourth proportional to 1,646.41, 2,272.11 and 900.35 is: 1,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.41 : 2,272.11 = 900.35 : x
  2. Step 2: Convert to fraction form
    1,646.41/2,272.11 = 900.35/x
  3. Step 3: Cross multiply
    1,646.41x = 2,272.11 × 900.35
  4. Step 4: Simplify right side
    1,646.41x = 2,045,694.24
  5. Step 5: Solve for x
    x = 2,045,694.24/1,646.41
  6. Step 6: Final answer
    x = 1,242.52

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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.