Home / 1,512.42-2,087.76-923.16

Finding the Fourth Proportional to 1,512.42, 2,087.76 and 923.16

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Solution

The fourth proportional to 1,512.42, 2,087.76 and 923.16 is: 1,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.42 : 2,087.76 = 923.16 : x
  2. Step 2: Convert to fraction form
    1,512.42/2,087.76 = 923.16/x
  3. Step 3: Cross multiply
    1,512.42x = 2,087.76 × 923.16
  4. Step 4: Simplify right side
    1,512.42x = 1,927,336.52
  5. Step 5: Solve for x
    x = 1,927,336.52/1,512.42
  6. Step 6: Final answer
    x = 1,274.34

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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.