Home / 5,102.85-7,041.87-2,864.94

Finding the Fourth Proportional to 5,102.85, 7,041.87 and 2,864.94

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Solution

The fourth proportional to 5,102.85, 7,041.87 and 2,864.94 is: 3,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.85 : 7,041.87 = 2,864.94 : x
  2. Step 2: Convert to fraction form
    5,102.85/7,041.87 = 2,864.94/x
  3. Step 3: Cross multiply
    5,102.85x = 7,041.87 × 2,864.94
  4. Step 4: Simplify right side
    5,102.85x = 20,174,535.04
  5. Step 5: Solve for x
    x = 20,174,535.04/5,102.85
  6. Step 6: Final answer
    x = 3,953.58

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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.