Home / 2,578.08-3,558.48-1,530.88

Finding the Fourth Proportional to 2,578.08, 3,558.48 and 1,530.88

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Solution

The fourth proportional to 2,578.08, 3,558.48 and 1,530.88 is: 2,113.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.08 : 3,558.48 = 1,530.88 : x
  2. Step 2: Convert to fraction form
    2,578.08/3,558.48 = 1,530.88/x
  3. Step 3: Cross multiply
    2,578.08x = 3,558.48 × 1,530.88
  4. Step 4: Simplify right side
    2,578.08x = 5,447,605.86
  5. Step 5: Solve for x
    x = 5,447,605.86/2,578.08
  6. Step 6: Final answer
    x = 2,113.05

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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.