Home / 5,153.29-7,111.56-2,795.45

Finding the Fourth Proportional to 5,153.29, 7,111.56 and 2,795.45

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Solution

The fourth proportional to 5,153.29, 7,111.56 and 2,795.45 is: 3,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.29 : 7,111.56 = 2,795.45 : x
  2. Step 2: Convert to fraction form
    5,153.29/7,111.56 = 2,795.45/x
  3. Step 3: Cross multiply
    5,153.29x = 7,111.56 × 2,795.45
  4. Step 4: Simplify right side
    5,153.29x = 19,880,001.51
  5. Step 5: Solve for x
    x = 19,880,001.51/5,153.29
  6. Step 6: Final answer
    x = 3,857.73

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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.