Home / 1,534.06-2,116.39-903.59

Finding the Fourth Proportional to 1,534.06, 2,116.39 and 903.59

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Solution

The fourth proportional to 1,534.06, 2,116.39 and 903.59 is: 1,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.06 : 2,116.39 = 903.59 : x
  2. Step 2: Convert to fraction form
    1,534.06/2,116.39 = 903.59/x
  3. Step 3: Cross multiply
    1,534.06x = 2,116.39 × 903.59
  4. Step 4: Simplify right side
    1,534.06x = 1,912,348.84
  5. Step 5: Solve for x
    x = 1,912,348.84/1,534.06
  6. Step 6: Final answer
    x = 1,246.59

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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.