Home / 5,920.29-8,878.51-2,171.21

Finding the Fourth Proportional to 5,920.29, 8,878.51 and 2,171.21

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Solution

The fourth proportional to 5,920.29, 8,878.51 and 2,171.21 is: 3,256.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.29 : 8,878.51 = 2,171.21 : x
  2. Step 2: Convert to fraction form
    5,920.29/8,878.51 = 2,171.21/x
  3. Step 3: Cross multiply
    5,920.29x = 8,878.51 × 2,171.21
  4. Step 4: Simplify right side
    5,920.29x = 19,277,068.02
  5. Step 5: Solve for x
    x = 19,277,068.02/5,920.29
  6. Step 6: Final answer
    x = 3,256.10

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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.