Home / 5,146.53-7,102.23-2,788.66

Finding the Fourth Proportional to 5,146.53, 7,102.23 and 2,788.66

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Solution

The fourth proportional to 5,146.53, 7,102.23 and 2,788.66 is: 3,848.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.53 : 7,102.23 = 2,788.66 : x
  2. Step 2: Convert to fraction form
    5,146.53/7,102.23 = 2,788.66/x
  3. Step 3: Cross multiply
    5,146.53x = 7,102.23 × 2,788.66
  4. Step 4: Simplify right side
    5,146.53x = 19,805,690.77
  5. Step 5: Solve for x
    x = 19,805,690.77/5,146.53
  6. Step 6: Final answer
    x = 3,848.36

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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.