Home / 2,110.28-2,909.47-1,730.78

Finding the Fourth Proportional to 2,110.28, 2,909.47 and 1,730.78

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Solution

The fourth proportional to 2,110.28, 2,909.47 and 1,730.78 is: 2,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.28 : 2,909.47 = 1,730.78 : x
  2. Step 2: Convert to fraction form
    2,110.28/2,909.47 = 1,730.78/x
  3. Step 3: Cross multiply
    2,110.28x = 2,909.47 × 1,730.78
  4. Step 4: Simplify right side
    2,110.28x = 5,035,629.29
  5. Step 5: Solve for x
    x = 5,035,629.29/2,110.28
  6. Step 6: Final answer
    x = 2,386.24

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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.