Home / 2,776.97-4,167.50-1,316.12

Finding the Fourth Proportional to 2,776.97, 4,167.50 and 1,316.12

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Solution

The fourth proportional to 2,776.97, 4,167.50 and 1,316.12 is: 1,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.97 : 4,167.50 = 1,316.12 : x
  2. Step 2: Convert to fraction form
    2,776.97/4,167.50 = 1,316.12/x
  3. Step 3: Cross multiply
    2,776.97x = 4,167.50 × 1,316.12
  4. Step 4: Simplify right side
    2,776.97x = 5,484,943.81
  5. Step 5: Solve for x
    x = 5,484,943.81/2,776.97
  6. Step 6: Final answer
    x = 1,975.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.