Home / 2,578.92-3,557.52-1,530.60

Finding the Fourth Proportional to 2,578.92, 3,557.52 and 1,530.60

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Solution

The fourth proportional to 2,578.92, 3,557.52 and 1,530.60 is: 2,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.92 : 3,557.52 = 1,530.60 : x
  2. Step 2: Convert to fraction form
    2,578.92/3,557.52 = 1,530.60/x
  3. Step 3: Cross multiply
    2,578.92x = 3,557.52 × 1,530.60
  4. Step 4: Simplify right side
    2,578.92x = 5,445,140.11
  5. Step 5: Solve for x
    x = 5,445,140.11/2,578.92
  6. Step 6: Final answer
    x = 2,111.40

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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.