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Finding the Fourth Proportional to 2,337.40, 3,506.73 and 777.65

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Solution

The fourth proportional to 2,337.40, 3,506.73 and 777.65 is: 1,166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,337.40 : 3,506.73 = 777.65 : x
  2. Step 2: Convert to fraction form
    2,337.40/3,506.73 = 777.65/x
  3. Step 3: Cross multiply
    2,337.40x = 3,506.73 × 777.65
  4. Step 4: Simplify right side
    2,337.40x = 2,727,004.70
  5. Step 5: Solve for x
    x = 2,727,004.70/2,337.40
  6. Step 6: Final answer
    x = 1,166.69

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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.