Home / 5,154.80-7,113.64-2,796.95

Finding the Fourth Proportional to 5,154.80, 7,113.64 and 2,796.95

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Solution

The fourth proportional to 5,154.80, 7,113.64 and 2,796.95 is: 3,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.80 : 7,113.64 = 2,796.95 : x
  2. Step 2: Convert to fraction form
    5,154.80/7,113.64 = 2,796.95/x
  3. Step 3: Cross multiply
    5,154.80x = 7,113.64 × 2,796.95
  4. Step 4: Simplify right side
    5,154.80x = 19,896,506.19
  5. Step 5: Solve for x
    x = 19,896,506.19/5,154.80
  6. Step 6: Final answer
    x = 3,859.81

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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.