Home / 5,678.10-7,835.84-3,160.16

Finding the Fourth Proportional to 5,678.10, 7,835.84 and 3,160.16

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Solution

The fourth proportional to 5,678.10, 7,835.84 and 3,160.16 is: 4,361.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.10 : 7,835.84 = 3,160.16 : x
  2. Step 2: Convert to fraction form
    5,678.10/7,835.84 = 3,160.16/x
  3. Step 3: Cross multiply
    5,678.10x = 7,835.84 × 3,160.16
  4. Step 4: Simplify right side
    5,678.10x = 24,762,538.47
  5. Step 5: Solve for x
    x = 24,762,538.47/5,678.10
  6. Step 6: Final answer
    x = 4,361.06

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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.