Home / 1,540.07-2,124.97-910.28

Finding the Fourth Proportional to 1,540.07, 2,124.97 and 910.28

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Solution

The fourth proportional to 1,540.07, 2,124.97 and 910.28 is: 1,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.07 : 2,124.97 = 910.28 : x
  2. Step 2: Convert to fraction form
    1,540.07/2,124.97 = 910.28/x
  3. Step 3: Cross multiply
    1,540.07x = 2,124.97 × 910.28
  4. Step 4: Simplify right side
    1,540.07x = 1,934,304.79
  5. Step 5: Solve for x
    x = 1,934,304.79/1,540.07
  6. Step 6: Final answer
    x = 1,255.99

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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.