Home / 2,154.88-2,974.06-1,316.07

Finding the Fourth Proportional to 2,154.88, 2,974.06 and 1,316.07

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Solution

The fourth proportional to 2,154.88, 2,974.06 and 1,316.07 is: 1,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.88 : 2,974.06 = 1,316.07 : x
  2. Step 2: Convert to fraction form
    2,154.88/2,974.06 = 1,316.07/x
  3. Step 3: Cross multiply
    2,154.88x = 2,974.06 × 1,316.07
  4. Step 4: Simplify right side
    2,154.88x = 3,914,071.14
  5. Step 5: Solve for x
    x = 3,914,071.14/2,154.88
  6. Step 6: Final answer
    x = 1,816.38

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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.