Home / 1,645.01-2,269.70-1,056.34

Finding the Fourth Proportional to 1,645.01, 2,269.70 and 1,056.34

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Solution

The fourth proportional to 1,645.01, 2,269.70 and 1,056.34 is: 1,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645.01 : 2,269.70 = 1,056.34 : x
  2. Step 2: Convert to fraction form
    1,645.01/2,269.70 = 1,056.34/x
  3. Step 3: Cross multiply
    1,645.01x = 2,269.70 × 1,056.34
  4. Step 4: Simplify right side
    1,645.01x = 2,397,558.27
  5. Step 5: Solve for x
    x = 2,397,558.27/1,645.01
  6. Step 6: Final answer
    x = 1,457.48

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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.