Home / 5,159.39-7,119.95-2,801.54

Finding the Fourth Proportional to 5,159.39, 7,119.95 and 2,801.54

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Solution

The fourth proportional to 5,159.39, 7,119.95 and 2,801.54 is: 3,866.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.39 : 7,119.95 = 2,801.54 : x
  2. Step 2: Convert to fraction form
    5,159.39/7,119.95 = 2,801.54/x
  3. Step 3: Cross multiply
    5,159.39x = 7,119.95 × 2,801.54
  4. Step 4: Simplify right side
    5,159.39x = 19,946,775.12
  5. Step 5: Solve for x
    x = 19,946,775.12/5,159.39
  6. Step 6: Final answer
    x = 3,866.11

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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.