Home / 3,903.04-5,386.12-2,134.63

Finding the Fourth Proportional to 3,903.04, 5,386.12 and 2,134.63

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Solution

The fourth proportional to 3,903.04, 5,386.12 and 2,134.63 is: 2,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.04 : 5,386.12 = 2,134.63 : x
  2. Step 2: Convert to fraction form
    3,903.04/5,386.12 = 2,134.63/x
  3. Step 3: Cross multiply
    3,903.04x = 5,386.12 × 2,134.63
  4. Step 4: Simplify right side
    3,903.04x = 11,497,373.34
  5. Step 5: Solve for x
    x = 11,497,373.34/3,903.04
  6. Step 6: Final answer
    x = 2,945.75

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Double scale
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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.