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Finding the Fourth Proportional to 1,920.07, 2,878.48 and 602.99

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Solution

The fourth proportional to 1,920.07, 2,878.48 and 602.99 is: 903.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.07 : 2,878.48 = 602.99 : x
  2. Step 2: Convert to fraction form
    1,920.07/2,878.48 = 602.99/x
  3. Step 3: Cross multiply
    1,920.07x = 2,878.48 × 602.99
  4. Step 4: Simplify right side
    1,920.07x = 1,735,691.81
  5. Step 5: Solve for x
    x = 1,735,691.81/1,920.07
  6. Step 6: Final answer
    x = 903.97

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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.