Home / 5,620.34-8,430.19-1,724.74

Finding the Fourth Proportional to 5,620.34, 8,430.19 and 1,724.74

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Solution

The fourth proportional to 5,620.34, 8,430.19 and 1,724.74 is: 2,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.34 : 8,430.19 = 1,724.74 : x
  2. Step 2: Convert to fraction form
    5,620.34/8,430.19 = 1,724.74/x
  3. Step 3: Cross multiply
    5,620.34x = 8,430.19 × 1,724.74
  4. Step 4: Simplify right side
    5,620.34x = 14,539,885.90
  5. Step 5: Solve for x
    x = 14,539,885.90/5,620.34
  6. Step 6: Final answer
    x = 2,587.01

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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.