Home / 1,511.07-2,084.99-913.44

Finding the Fourth Proportional to 1,511.07, 2,084.99 and 913.44

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Solution

The fourth proportional to 1,511.07, 2,084.99 and 913.44 is: 1,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.07 : 2,084.99 = 913.44 : x
  2. Step 2: Convert to fraction form
    1,511.07/2,084.99 = 913.44/x
  3. Step 3: Cross multiply
    1,511.07x = 2,084.99 × 913.44
  4. Step 4: Simplify right side
    1,511.07x = 1,904,521.66
  5. Step 5: Solve for x
    x = 1,904,521.66/1,511.07
  6. Step 6: Final answer
    x = 1,260.38

Related Problems

Find fourth proportional to 755.54, 1,042.50 and 456.72
Half scale
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Double scale
Find fourth proportional to 1,512.07, 2,086.37 and 914.44
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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.