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Finding the Fourth Proportional to 952.85, 1,315.02 and 683.46

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Solution

The fourth proportional to 952.85, 1,315.02 and 683.46 is: 943.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.85 : 1,315.02 = 683.46 : x
  2. Step 2: Convert to fraction form
    952.85/1,315.02 = 683.46/x
  3. Step 3: Cross multiply
    952.85x = 1,315.02 × 683.46
  4. Step 4: Simplify right side
    952.85x = 898,763.57
  5. Step 5: Solve for x
    x = 898,763.57/952.85
  6. Step 6: Final answer
    x = 943.24

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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.