Home / 2,011.36-2,775.95-1,172.33

Finding the Fourth Proportional to 2,011.36, 2,775.95 and 1,172.33

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Solution

The fourth proportional to 2,011.36, 2,775.95 and 1,172.33 is: 1,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,011.36 : 2,775.95 = 1,172.33 : x
  2. Step 2: Convert to fraction form
    2,011.36/2,775.95 = 1,172.33/x
  3. Step 3: Cross multiply
    2,011.36x = 2,775.95 × 1,172.33
  4. Step 4: Simplify right side
    2,011.36x = 3,254,329.46
  5. Step 5: Solve for x
    x = 3,254,329.46/2,011.36
  6. Step 6: Final answer
    x = 1,617.97

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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.