Home / 2,690.10-4,036.29-1,130.49

Finding the Fourth Proportional to 2,690.10, 4,036.29 and 1,130.49

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Solution

The fourth proportional to 2,690.10, 4,036.29 and 1,130.49 is: 1,696.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.10 : 4,036.29 = 1,130.49 : x
  2. Step 2: Convert to fraction form
    2,690.10/4,036.29 = 1,130.49/x
  3. Step 3: Cross multiply
    2,690.10x = 4,036.29 × 1,130.49
  4. Step 4: Simplify right side
    2,690.10x = 4,562,985.48
  5. Step 5: Solve for x
    x = 4,562,985.48/2,690.10
  6. Step 6: Final answer
    x = 1,696.21

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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.