Home / 2,001.57-2,761.80-1,117.35

Finding the Fourth Proportional to 2,001.57, 2,761.80 and 1,117.35

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Solution

The fourth proportional to 2,001.57, 2,761.80 and 1,117.35 is: 1,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.57 : 2,761.80 = 1,117.35 : x
  2. Step 2: Convert to fraction form
    2,001.57/2,761.80 = 1,117.35/x
  3. Step 3: Cross multiply
    2,001.57x = 2,761.80 × 1,117.35
  4. Step 4: Simplify right side
    2,001.57x = 3,085,897.23
  5. Step 5: Solve for x
    x = 3,085,897.23/2,001.57
  6. Step 6: Final answer
    x = 1,541.74

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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.