Home / 5,620.34-8,430.51-3,123.11

Finding the Fourth Proportional to 5,620.34, 8,430.51 and 3,123.11

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Solution

The fourth proportional to 5,620.34, 8,430.51 and 3,123.11 is: 4,684.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.34 : 8,430.51 = 3,123.11 : x
  2. Step 2: Convert to fraction form
    5,620.34/8,430.51 = 3,123.11/x
  3. Step 3: Cross multiply
    5,620.34x = 8,430.51 × 3,123.11
  4. Step 4: Simplify right side
    5,620.34x = 26,329,367.93
  5. Step 5: Solve for x
    x = 26,329,367.93/5,620.34
  6. Step 6: Final answer
    x = 4,684.66

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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.