Home / 2,136.25-2,947.58-2,066.32

Finding the Fourth Proportional to 2,136.25, 2,947.58 and 2,066.32

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Solution

The fourth proportional to 2,136.25, 2,947.58 and 2,066.32 is: 2,851.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.25 : 2,947.58 = 2,066.32 : x
  2. Step 2: Convert to fraction form
    2,136.25/2,947.58 = 2,066.32/x
  3. Step 3: Cross multiply
    2,136.25x = 2,947.58 × 2,066.32
  4. Step 4: Simplify right side
    2,136.25x = 6,090,625.81
  5. Step 5: Solve for x
    x = 6,090,625.81/2,136.25
  6. Step 6: Final answer
    x = 2,851.09

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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.