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Finding the Fourth Proportional to 2,775.03, 4,160.80 and 925.66

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Solution

The fourth proportional to 2,775.03, 4,160.80 and 925.66 is: 1,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.03 : 4,160.80 = 925.66 : x
  2. Step 2: Convert to fraction form
    2,775.03/4,160.80 = 925.66/x
  3. Step 3: Cross multiply
    2,775.03x = 4,160.80 × 925.66
  4. Step 4: Simplify right side
    2,775.03x = 3,851,492.49
  5. Step 5: Solve for x
    x = 3,851,492.49/2,775.03
  6. Step 6: Final answer
    x = 1,387.91

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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.