Home / 2,151.24-2,968.47-1,206.84

Finding the Fourth Proportional to 2,151.24, 2,968.47 and 1,206.84

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Solution

The fourth proportional to 2,151.24, 2,968.47 and 1,206.84 is: 1,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.24 : 2,968.47 = 1,206.84 : x
  2. Step 2: Convert to fraction form
    2,151.24/2,968.47 = 1,206.84/x
  3. Step 3: Cross multiply
    2,151.24x = 2,968.47 × 1,206.84
  4. Step 4: Simplify right side
    2,151.24x = 3,582,461.99
  5. Step 5: Solve for x
    x = 3,582,461.99/2,151.24
  6. Step 6: Final answer
    x = 1,665.30

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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.