Home / 2,690.55-4,035.69-1,130.76

Finding the Fourth Proportional to 2,690.55, 4,035.69 and 1,130.76

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Solution

The fourth proportional to 2,690.55, 4,035.69 and 1,130.76 is: 1,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.55 : 4,035.69 = 1,130.76 : x
  2. Step 2: Convert to fraction form
    2,690.55/4,035.69 = 1,130.76/x
  3. Step 3: Cross multiply
    2,690.55x = 4,035.69 × 1,130.76
  4. Step 4: Simplify right side
    2,690.55x = 4,563,396.82
  5. Step 5: Solve for x
    x = 4,563,396.82/2,690.55
  6. Step 6: Final answer
    x = 1,696.08

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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.