Home / 1,512.18-2,087.49-1,015.14

Finding the Fourth Proportional to 1,512.18, 2,087.49 and 1,015.14

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Solution

The fourth proportional to 1,512.18, 2,087.49 and 1,015.14 is: 1,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.18 : 2,087.49 = 1,015.14 : x
  2. Step 2: Convert to fraction form
    1,512.18/2,087.49 = 1,015.14/x
  3. Step 3: Cross multiply
    1,512.18x = 2,087.49 × 1,015.14
  4. Step 4: Simplify right side
    1,512.18x = 2,119,094.60
  5. Step 5: Solve for x
    x = 2,119,094.60/1,512.18
  6. Step 6: Final answer
    x = 1,401.35

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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.