Home / 1,911.43-2,880.17-1,572.36

Finding the Fourth Proportional to 1,911.43, 2,880.17 and 1,572.36

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Solution

The fourth proportional to 1,911.43, 2,880.17 and 1,572.36 is: 2,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.43 : 2,880.17 = 1,572.36 : x
  2. Step 2: Convert to fraction form
    1,911.43/2,880.17 = 1,572.36/x
  3. Step 3: Cross multiply
    1,911.43x = 2,880.17 × 1,572.36
  4. Step 4: Simplify right side
    1,911.43x = 4,528,664.10
  5. Step 5: Solve for x
    x = 4,528,664.10/1,911.43
  6. Step 6: Final answer
    x = 2,369.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.