Home / 1,767.17-2,438.76-1,208.81

Finding the Fourth Proportional to 1,767.17, 2,438.76 and 1,208.81

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Solution

The fourth proportional to 1,767.17, 2,438.76 and 1,208.81 is: 1,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.17 : 2,438.76 = 1,208.81 : x
  2. Step 2: Convert to fraction form
    1,767.17/2,438.76 = 1,208.81/x
  3. Step 3: Cross multiply
    1,767.17x = 2,438.76 × 1,208.81
  4. Step 4: Simplify right side
    1,767.17x = 2,947,985.28
  5. Step 5: Solve for x
    x = 2,947,985.28/1,767.17
  6. Step 6: Final answer
    x = 1,668.20

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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.