Home / 2,015.40-3,018.32-1,135.74

Finding the Fourth Proportional to 2,015.40, 3,018.32 and 1,135.74

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Solution

The fourth proportional to 2,015.40, 3,018.32 and 1,135.74 is: 1,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.40 : 3,018.32 = 1,135.74 : x
  2. Step 2: Convert to fraction form
    2,015.40/3,018.32 = 1,135.74/x
  3. Step 3: Cross multiply
    2,015.40x = 3,018.32 × 1,135.74
  4. Step 4: Simplify right side
    2,015.40x = 3,428,026.76
  5. Step 5: Solve for x
    x = 3,428,026.76/2,015.40
  6. Step 6: Final answer
    x = 1,700.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.