Home / 5,153.48-7,111.79-2,795.62

Finding the Fourth Proportional to 5,153.48, 7,111.79 and 2,795.62

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Solution

The fourth proportional to 5,153.48, 7,111.79 and 2,795.62 is: 3,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.48 : 7,111.79 = 2,795.62 : x
  2. Step 2: Convert to fraction form
    5,153.48/7,111.79 = 2,795.62/x
  3. Step 3: Cross multiply
    5,153.48x = 7,111.79 × 2,795.62
  4. Step 4: Simplify right side
    5,153.48x = 19,881,862.36
  5. Step 5: Solve for x
    x = 19,881,862.36/5,153.48
  6. Step 6: Final answer
    x = 3,857.95

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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.