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Finding the Fourth Proportional to 1,454.30, 2,176.05 and 968.30

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Solution

The fourth proportional to 1,454.30, 2,176.05 and 968.30 is: 1,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.30 : 2,176.05 = 968.30 : x
  2. Step 2: Convert to fraction form
    1,454.30/2,176.05 = 968.30/x
  3. Step 3: Cross multiply
    1,454.30x = 2,176.05 × 968.30
  4. Step 4: Simplify right side
    1,454.30x = 2,107,069.22
  5. Step 5: Solve for x
    x = 2,107,069.22/1,454.30
  6. Step 6: Final answer
    x = 1,448.85

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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.