Home / 5,563.89-7,678.85-3,174.45

Finding the Fourth Proportional to 5,563.89, 7,678.85 and 3,174.45

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Solution

The fourth proportional to 5,563.89, 7,678.85 and 3,174.45 is: 4,381.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,563.89 : 7,678.85 = 3,174.45 : x
  2. Step 2: Convert to fraction form
    5,563.89/7,678.85 = 3,174.45/x
  3. Step 3: Cross multiply
    5,563.89x = 7,678.85 × 3,174.45
  4. Step 4: Simplify right side
    5,563.89x = 24,376,109.51
  5. Step 5: Solve for x
    x = 24,376,109.51/5,563.89
  6. Step 6: Final answer
    x = 4,381.13

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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.