Home / 2,155.36-2,954.96-2,116.48

Finding the Fourth Proportional to 2,155.36, 2,954.96 and 2,116.48

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Solution

The fourth proportional to 2,155.36, 2,954.96 and 2,116.48 is: 2,901.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.36 : 2,954.96 = 2,116.48 : x
  2. Step 2: Convert to fraction form
    2,155.36/2,954.96 = 2,116.48/x
  3. Step 3: Cross multiply
    2,155.36x = 2,954.96 × 2,116.48
  4. Step 4: Simplify right side
    2,155.36x = 6,254,113.74
  5. Step 5: Solve for x
    x = 6,254,113.74/2,155.36
  6. Step 6: Final answer
    x = 2,901.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.