Home / 2,170.81-2,995.75-1,176.13

Finding the Fourth Proportional to 2,170.81, 2,995.75 and 1,176.13

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Solution

The fourth proportional to 2,170.81, 2,995.75 and 1,176.13 is: 1,623.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.81 : 2,995.75 = 1,176.13 : x
  2. Step 2: Convert to fraction form
    2,170.81/2,995.75 = 1,176.13/x
  3. Step 3: Cross multiply
    2,170.81x = 2,995.75 × 1,176.13
  4. Step 4: Simplify right side
    2,170.81x = 3,523,376.47
  5. Step 5: Solve for x
    x = 3,523,376.47/2,170.81
  6. Step 6: Final answer
    x = 1,623.07

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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.