Home / 5,166.16-7,747.38-1,878.40

Finding the Fourth Proportional to 5,166.16, 7,747.38 and 1,878.40

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Solution

The fourth proportional to 5,166.16, 7,747.38 and 1,878.40 is: 2,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.16 : 7,747.38 = 1,878.40 : x
  2. Step 2: Convert to fraction form
    5,166.16/7,747.38 = 1,878.40/x
  3. Step 3: Cross multiply
    5,166.16x = 7,747.38 × 1,878.40
  4. Step 4: Simplify right side
    5,166.16x = 14,552,678.59
  5. Step 5: Solve for x
    x = 14,552,678.59/5,166.16
  6. Step 6: Final answer
    x = 2,816.92

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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.