Home / 2,905.90-4,009.17-1,726.30

Finding the Fourth Proportional to 2,905.90, 4,009.17 and 1,726.30

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Solution

The fourth proportional to 2,905.90, 4,009.17 and 1,726.30 is: 2,381.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.90 : 4,009.17 = 1,726.30 : x
  2. Step 2: Convert to fraction form
    2,905.90/4,009.17 = 1,726.30/x
  3. Step 3: Cross multiply
    2,905.90x = 4,009.17 × 1,726.30
  4. Step 4: Simplify right side
    2,905.90x = 6,921,030.17
  5. Step 5: Solve for x
    x = 6,921,030.17/2,905.90
  6. Step 6: Final answer
    x = 2,381.72

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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.