Home / 1,347.09-2,018.30-936.50

Finding the Fourth Proportional to 1,347.09, 2,018.30 and 936.50

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Solution

The fourth proportional to 1,347.09, 2,018.30 and 936.50 is: 1,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.09 : 2,018.30 = 936.50 : x
  2. Step 2: Convert to fraction form
    1,347.09/2,018.30 = 936.50/x
  3. Step 3: Cross multiply
    1,347.09x = 2,018.30 × 936.50
  4. Step 4: Simplify right side
    1,347.09x = 1,890,123.18
  5. Step 5: Solve for x
    x = 1,890,123.18/1,347.09
  6. Step 6: Final answer
    x = 1,403.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.