Home / 2,905.23-4,009.30-1,646.46

Finding the Fourth Proportional to 2,905.23, 4,009.30 and 1,646.46

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Solution

The fourth proportional to 2,905.23, 4,009.30 and 1,646.46 is: 2,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.23 : 4,009.30 = 1,646.46 : x
  2. Step 2: Convert to fraction form
    2,905.23/4,009.30 = 1,646.46/x
  3. Step 3: Cross multiply
    2,905.23x = 4,009.30 × 1,646.46
  4. Step 4: Simplify right side
    2,905.23x = 6,601,152.08
  5. Step 5: Solve for x
    x = 6,601,152.08/2,905.23
  6. Step 6: Final answer
    x = 2,272.16

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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.