Home / 2,830.87-4,242.81-2,053.54

Finding the Fourth Proportional to 2,830.87, 4,242.81 and 2,053.54

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Solution

The fourth proportional to 2,830.87, 4,242.81 and 2,053.54 is: 3,077.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.87 : 4,242.81 = 2,053.54 : x
  2. Step 2: Convert to fraction form
    2,830.87/4,242.81 = 2,053.54/x
  3. Step 3: Cross multiply
    2,830.87x = 4,242.81 × 2,053.54
  4. Step 4: Simplify right side
    2,830.87x = 8,712,780.05
  5. Step 5: Solve for x
    x = 8,712,780.05/2,830.87
  6. Step 6: Final answer
    x = 3,077.77

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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.