Home / 5,159.42-7,119.87-2,801.51

Finding the Fourth Proportional to 5,159.42, 7,119.87 and 2,801.51

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Solution

The fourth proportional to 5,159.42, 7,119.87 and 2,801.51 is: 3,866.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.42 : 7,119.87 = 2,801.51 : x
  2. Step 2: Convert to fraction form
    5,159.42/7,119.87 = 2,801.51/x
  3. Step 3: Cross multiply
    5,159.42x = 7,119.87 × 2,801.51
  4. Step 4: Simplify right side
    5,159.42x = 19,946,351.40
  5. Step 5: Solve for x
    x = 19,946,351.40/5,159.42
  6. Step 6: Final answer
    x = 3,866.01

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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.