Home / 2,690.17-4,036.81-1,130.05

Finding the Fourth Proportional to 2,690.17, 4,036.81 and 1,130.05

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Solution

The fourth proportional to 2,690.17, 4,036.81 and 1,130.05 is: 1,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.17 : 4,036.81 = 1,130.05 : x
  2. Step 2: Convert to fraction form
    2,690.17/4,036.81 = 1,130.05/x
  3. Step 3: Cross multiply
    2,690.17x = 4,036.81 × 1,130.05
  4. Step 4: Simplify right side
    2,690.17x = 4,561,797.14
  5. Step 5: Solve for x
    x = 4,561,797.14/2,690.17
  6. Step 6: Final answer
    x = 1,695.73

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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.