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Finding the Fourth Proportional to 2,703.97, 4,053.51 and 972.19

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Solution

The fourth proportional to 2,703.97, 4,053.51 and 972.19 is: 1,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,703.97 : 4,053.51 = 972.19 : x
  2. Step 2: Convert to fraction form
    2,703.97/4,053.51 = 972.19/x
  3. Step 3: Cross multiply
    2,703.97x = 4,053.51 × 972.19
  4. Step 4: Simplify right side
    2,703.97x = 3,940,781.89
  5. Step 5: Solve for x
    x = 3,940,781.89/2,703.97
  6. Step 6: Final answer
    x = 1,457.41

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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.