Home / 2,578.34-3,555.42-1,530.20

Finding the Fourth Proportional to 2,578.34, 3,555.42 and 1,530.20

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Solution

The fourth proportional to 2,578.34, 3,555.42 and 1,530.20 is: 2,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.34 : 3,555.42 = 1,530.20 : x
  2. Step 2: Convert to fraction form
    2,578.34/3,555.42 = 1,530.20/x
  3. Step 3: Cross multiply
    2,578.34x = 3,555.42 × 1,530.20
  4. Step 4: Simplify right side
    2,578.34x = 5,440,503.68
  5. Step 5: Solve for x
    x = 5,440,503.68/2,578.34
  6. Step 6: Final answer
    x = 2,110.08

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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.