Home / 2,878.18-4,317.20-1,642.48

Finding the Fourth Proportional to 2,878.18, 4,317.20 and 1,642.48

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Solution

The fourth proportional to 2,878.18, 4,317.20 and 1,642.48 is: 2,463.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.18 : 4,317.20 = 1,642.48 : x
  2. Step 2: Convert to fraction form
    2,878.18/4,317.20 = 1,642.48/x
  3. Step 3: Cross multiply
    2,878.18x = 4,317.20 × 1,642.48
  4. Step 4: Simplify right side
    2,878.18x = 7,090,914.66
  5. Step 5: Solve for x
    x = 7,090,914.66/2,878.18
  6. Step 6: Final answer
    x = 2,463.68

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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.