Home / 2,117.60-3,176.36-578.60

Finding the Fourth Proportional to 2,117.60, 3,176.36 and 578.60

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Solution

The fourth proportional to 2,117.60, 3,176.36 and 578.60 is: 867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.60 : 3,176.36 = 578.60 : x
  2. Step 2: Convert to fraction form
    2,117.60/3,176.36 = 578.60/x
  3. Step 3: Cross multiply
    2,117.60x = 3,176.36 × 578.60
  4. Step 4: Simplify right side
    2,117.60x = 1,837,823.12
  5. Step 5: Solve for x
    x = 1,837,823.12/2,117.60
  6. Step 6: Final answer
    x = 867.88

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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.