Home / 1,870.90-2,581.38-1,084.48

Finding the Fourth Proportional to 1,870.90, 2,581.38 and 1,084.48

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Solution

The fourth proportional to 1,870.90, 2,581.38 and 1,084.48 is: 1,496.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870.90 : 2,581.38 = 1,084.48 : x
  2. Step 2: Convert to fraction form
    1,870.90/2,581.38 = 1,084.48/x
  3. Step 3: Cross multiply
    1,870.90x = 2,581.38 × 1,084.48
  4. Step 4: Simplify right side
    1,870.90x = 2,799,454.98
  5. Step 5: Solve for x
    x = 2,799,454.98/1,870.90
  6. Step 6: Final answer
    x = 1,496.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.