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Finding the Fourth Proportional to 2,298.65, 3,448.55 and 738.79

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Solution

The fourth proportional to 2,298.65, 3,448.55 and 738.79 is: 1,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,298.65 : 3,448.55 = 738.79 : x
  2. Step 2: Convert to fraction form
    2,298.65/3,448.55 = 738.79/x
  3. Step 3: Cross multiply
    2,298.65x = 3,448.55 × 738.79
  4. Step 4: Simplify right side
    2,298.65x = 2,547,754.25
  5. Step 5: Solve for x
    x = 2,547,754.25/2,298.65
  6. Step 6: Final answer
    x = 1,108.37

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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.