Home / 2,001.16-2,761.86-1,117.15

Finding the Fourth Proportional to 2,001.16, 2,761.86 and 1,117.15

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Solution

The fourth proportional to 2,001.16, 2,761.86 and 1,117.15 is: 1,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.16 : 2,761.86 = 1,117.15 : x
  2. Step 2: Convert to fraction form
    2,001.16/2,761.86 = 1,117.15/x
  3. Step 3: Cross multiply
    2,001.16x = 2,761.86 × 1,117.15
  4. Step 4: Simplify right side
    2,001.16x = 3,085,409.18
  5. Step 5: Solve for x
    x = 3,085,409.18/2,001.16
  6. Step 6: Final answer
    x = 1,541.81

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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.