Home / 2,154.57-2,973.23-1,316.68

Finding the Fourth Proportional to 2,154.57, 2,973.23 and 1,316.68

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Solution

The fourth proportional to 2,154.57, 2,973.23 and 1,316.68 is: 1,816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.57 : 2,973.23 = 1,316.68 : x
  2. Step 2: Convert to fraction form
    2,154.57/2,973.23 = 1,316.68/x
  3. Step 3: Cross multiply
    2,154.57x = 2,973.23 × 1,316.68
  4. Step 4: Simplify right side
    2,154.57x = 3,914,795.46
  5. Step 5: Solve for x
    x = 3,914,795.46/2,154.57
  6. Step 6: Final answer
    x = 1,816.97

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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.