Home / 5,678.12-8,502.60-3,480.19

Finding the Fourth Proportional to 5,678.12, 8,502.60 and 3,480.19

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Solution

The fourth proportional to 5,678.12, 8,502.60 and 3,480.19 is: 5,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.12 : 8,502.60 = 3,480.19 : x
  2. Step 2: Convert to fraction form
    5,678.12/8,502.60 = 3,480.19/x
  3. Step 3: Cross multiply
    5,678.12x = 8,502.60 × 3,480.19
  4. Step 4: Simplify right side
    5,678.12x = 29,590,663.49
  5. Step 5: Solve for x
    x = 29,590,663.49/5,678.12
  6. Step 6: Final answer
    x = 5,211.35

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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.