Home / 1,913.74-2,870.57-1,090.25

Finding the Fourth Proportional to 1,913.74, 2,870.57 and 1,090.25

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Solution

The fourth proportional to 1,913.74, 2,870.57 and 1,090.25 is: 1,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.74 : 2,870.57 = 1,090.25 : x
  2. Step 2: Convert to fraction form
    1,913.74/2,870.57 = 1,090.25/x
  3. Step 3: Cross multiply
    1,913.74x = 2,870.57 × 1,090.25
  4. Step 4: Simplify right side
    1,913.74x = 3,129,640.67
  5. Step 5: Solve for x
    x = 3,129,640.67/1,913.74
  6. Step 6: Final answer
    x = 1,635.36

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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.