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Finding the Fourth Proportional to 1,754.92, 2,421.96 and 969.02

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Solution

The fourth proportional to 1,754.92, 2,421.96 and 969.02 is: 1,337.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.92 : 2,421.96 = 969.02 : x
  2. Step 2: Convert to fraction form
    1,754.92/2,421.96 = 969.02/x
  3. Step 3: Cross multiply
    1,754.92x = 2,421.96 × 969.02
  4. Step 4: Simplify right side
    1,754.92x = 2,346,927.68
  5. Step 5: Solve for x
    x = 2,346,927.68/1,754.92
  6. Step 6: Final answer
    x = 1,337.34

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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.