Home / 5,143.47-7,097.93-2,905.34

Finding the Fourth Proportional to 5,143.47, 7,097.93 and 2,905.34

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Solution

The fourth proportional to 5,143.47, 7,097.93 and 2,905.34 is: 4,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.47 : 7,097.93 = 2,905.34 : x
  2. Step 2: Convert to fraction form
    5,143.47/7,097.93 = 2,905.34/x
  3. Step 3: Cross multiply
    5,143.47x = 7,097.93 × 2,905.34
  4. Step 4: Simplify right side
    5,143.47x = 20,621,864.46
  5. Step 5: Solve for x
    x = 20,621,864.46/5,143.47
  6. Step 6: Final answer
    x = 4,009.33

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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.