Home / 3,555.17-4,904.93-2,157.65

Finding the Fourth Proportional to 3,555.17, 4,904.93 and 2,157.65

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Solution

The fourth proportional to 3,555.17, 4,904.93 and 2,157.65 is: 2,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.17 : 4,904.93 = 2,157.65 : x
  2. Step 2: Convert to fraction form
    3,555.17/4,904.93 = 2,157.65/x
  3. Step 3: Cross multiply
    3,555.17x = 4,904.93 × 2,157.65
  4. Step 4: Simplify right side
    3,555.17x = 10,583,111.43
  5. Step 5: Solve for x
    x = 10,583,111.43/3,555.17
  6. Step 6: Final answer
    x = 2,976.82

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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.