Home / 3,154.80-4,352.16-1,878.12

Finding the Fourth Proportional to 3,154.80, 4,352.16 and 1,878.12

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Solution

The fourth proportional to 3,154.80, 4,352.16 and 1,878.12 is: 2,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.80 : 4,352.16 = 1,878.12 : x
  2. Step 2: Convert to fraction form
    3,154.80/4,352.16 = 1,878.12/x
  3. Step 3: Cross multiply
    3,154.80x = 4,352.16 × 1,878.12
  4. Step 4: Simplify right side
    3,154.80x = 8,173,878.74
  5. Step 5: Solve for x
    x = 8,173,878.74/3,154.80
  6. Step 6: Final answer
    x = 2,590.93

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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.