Home / 1,910.90-2,637.18-1,071.68

Finding the Fourth Proportional to 1,910.90, 2,637.18 and 1,071.68

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Solution

The fourth proportional to 1,910.90, 2,637.18 and 1,071.68 is: 1,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.90 : 2,637.18 = 1,071.68 : x
  2. Step 2: Convert to fraction form
    1,910.90/2,637.18 = 1,071.68/x
  3. Step 3: Cross multiply
    1,910.90x = 2,637.18 × 1,071.68
  4. Step 4: Simplify right side
    1,910.90x = 2,826,213.06
  5. Step 5: Solve for x
    x = 2,826,213.06/1,910.90
  6. Step 6: Final answer
    x = 1,479.00

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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.