Home / 1,640.08-2,262.76-1,010.32

Finding the Fourth Proportional to 1,640.08, 2,262.76 and 1,010.32

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Solution

The fourth proportional to 1,640.08, 2,262.76 and 1,010.32 is: 1,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640.08 : 2,262.76 = 1,010.32 : x
  2. Step 2: Convert to fraction form
    1,640.08/2,262.76 = 1,010.32/x
  3. Step 3: Cross multiply
    1,640.08x = 2,262.76 × 1,010.32
  4. Step 4: Simplify right side
    1,640.08x = 2,286,111.68
  5. Step 5: Solve for x
    x = 2,286,111.68/1,640.08
  6. Step 6: Final answer
    x = 1,393.90

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1.5x scale

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.