Home / 3,378.65-5,045.52-2,917.55

Finding the Fourth Proportional to 3,378.65, 5,045.52 and 2,917.55

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Solution

The fourth proportional to 3,378.65, 5,045.52 and 2,917.55 is: 4,356.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.65 : 5,045.52 = 2,917.55 : x
  2. Step 2: Convert to fraction form
    3,378.65/5,045.52 = 2,917.55/x
  3. Step 3: Cross multiply
    3,378.65x = 5,045.52 × 2,917.55
  4. Step 4: Simplify right side
    3,378.65x = 14,720,531.65
  5. Step 5: Solve for x
    x = 14,720,531.65/3,378.65
  6. Step 6: Final answer
    x = 4,356.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.