Home / 3,903.30-5,386.67-2,135.00

Finding the Fourth Proportional to 3,903.30, 5,386.67 and 2,135.00

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Solution

The fourth proportional to 3,903.30, 5,386.67 and 2,135.00 is: 2,946.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.30 : 5,386.67 = 2,135.00 : x
  2. Step 2: Convert to fraction form
    3,903.30/5,386.67 = 2,135.00/x
  3. Step 3: Cross multiply
    3,903.30x = 5,386.67 × 2,135.00
  4. Step 4: Simplify right side
    3,903.30x = 11,500,502.84
  5. Step 5: Solve for x
    x = 11,500,502.84/3,903.30
  6. Step 6: Final answer
    x = 2,946.35

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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.