Home / 1,355.58-2,042.60-1,117.44

Finding the Fourth Proportional to 1,355.58, 2,042.60 and 1,117.44

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Solution

The fourth proportional to 1,355.58, 2,042.60 and 1,117.44 is: 1,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355.58 : 2,042.60 = 1,117.44 : x
  2. Step 2: Convert to fraction form
    1,355.58/2,042.60 = 1,117.44/x
  3. Step 3: Cross multiply
    1,355.58x = 2,042.60 × 1,117.44
  4. Step 4: Simplify right side
    1,355.58x = 2,282,477.36
  5. Step 5: Solve for x
    x = 2,282,477.36/1,355.58
  6. Step 6: Final answer
    x = 1,683.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.