Home / 1,639.90-2,263.67-1,010.53

Finding the Fourth Proportional to 1,639.90, 2,263.67 and 1,010.53

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Solution

The fourth proportional to 1,639.90, 2,263.67 and 1,010.53 is: 1,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.90 : 2,263.67 = 1,010.53 : x
  2. Step 2: Convert to fraction form
    1,639.90/2,263.67 = 1,010.53/x
  3. Step 3: Cross multiply
    1,639.90x = 2,263.67 × 1,010.53
  4. Step 4: Simplify right side
    1,639.90x = 2,287,506.45
  5. Step 5: Solve for x
    x = 2,287,506.45/1,639.90
  6. Step 6: Final answer
    x = 1,394.91

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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.