Home / 1,764.39-2,435.24-1,206.20

Finding the Fourth Proportional to 1,764.39, 2,435.24 and 1,206.20

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Solution

The fourth proportional to 1,764.39, 2,435.24 and 1,206.20 is: 1,664.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764.39 : 2,435.24 = 1,206.20 : x
  2. Step 2: Convert to fraction form
    1,764.39/2,435.24 = 1,206.20/x
  3. Step 3: Cross multiply
    1,764.39x = 2,435.24 × 1,206.20
  4. Step 4: Simplify right side
    1,764.39x = 2,937,368.28
  5. Step 5: Solve for x
    x = 2,937,368.28/1,764.39
  6. Step 6: Final answer
    x = 1,664.81

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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.