Home / 5,157.66-7,117.73-2,799.95

Finding the Fourth Proportional to 5,157.66, 7,117.73 and 2,799.95

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Solution

The fourth proportional to 5,157.66, 7,117.73 and 2,799.95 is: 3,864.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.66 : 7,117.73 = 2,799.95 : x
  2. Step 2: Convert to fraction form
    5,157.66/7,117.73 = 2,799.95/x
  3. Step 3: Cross multiply
    5,157.66x = 7,117.73 × 2,799.95
  4. Step 4: Simplify right side
    5,157.66x = 19,929,238.53
  5. Step 5: Solve for x
    x = 19,929,238.53/5,157.66
  6. Step 6: Final answer
    x = 3,864.01

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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.