Home / 1,206.48-1,664.88-675.43

Finding the Fourth Proportional to 1,206.48, 1,664.88 and 675.43

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Solution

The fourth proportional to 1,206.48, 1,664.88 and 675.43 is: 932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.48 : 1,664.88 = 675.43 : x
  2. Step 2: Convert to fraction form
    1,206.48/1,664.88 = 675.43/x
  3. Step 3: Cross multiply
    1,206.48x = 1,664.88 × 675.43
  4. Step 4: Simplify right side
    1,206.48x = 1,124,509.90
  5. Step 5: Solve for x
    x = 1,124,509.90/1,206.48
  6. Step 6: Final answer
    x = 932.06

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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.