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Finding the Fourth Proportional to 2,345.79, 3,517.36 and 957.50

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Solution

The fourth proportional to 2,345.79, 3,517.36 and 957.50 is: 1,435.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.79 : 3,517.36 = 957.50 : x
  2. Step 2: Convert to fraction form
    2,345.79/3,517.36 = 957.50/x
  3. Step 3: Cross multiply
    2,345.79x = 3,517.36 × 957.50
  4. Step 4: Simplify right side
    2,345.79x = 3,367,885.19
  5. Step 5: Solve for x
    x = 3,367,885.19/2,345.79
  6. Step 6: Final answer
    x = 1,435.71

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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.