Home / 1,135.35-1,573.36-1,113.48

Finding the Fourth Proportional to 1,135.35, 1,573.36 and 1,113.48

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Solution

The fourth proportional to 1,135.35, 1,573.36 and 1,113.48 is: 1,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.35 : 1,573.36 = 1,113.48 : x
  2. Step 2: Convert to fraction form
    1,135.35/1,573.36 = 1,113.48/x
  3. Step 3: Cross multiply
    1,135.35x = 1,573.36 × 1,113.48
  4. Step 4: Simplify right side
    1,135.35x = 1,751,902.11
  5. Step 5: Solve for x
    x = 1,751,902.11/1,135.35
  6. Step 6: Final answer
    x = 1,543.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.