Home / 1,675.78-2,313.37-1,117.18

Finding the Fourth Proportional to 1,675.78, 2,313.37 and 1,117.18

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Solution

The fourth proportional to 1,675.78, 2,313.37 and 1,117.18 is: 1,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.78 : 2,313.37 = 1,117.18 : x
  2. Step 2: Convert to fraction form
    1,675.78/2,313.37 = 1,117.18/x
  3. Step 3: Cross multiply
    1,675.78x = 2,313.37 × 1,117.18
  4. Step 4: Simplify right side
    1,675.78x = 2,584,450.70
  5. Step 5: Solve for x
    x = 2,584,450.70/1,675.78
  6. Step 6: Final answer
    x = 1,542.24

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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.