Home / 5,620.61-8,429.72-1,670.92

Finding the Fourth Proportional to 5,620.61, 8,429.72 and 1,670.92

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Solution

The fourth proportional to 5,620.61, 8,429.72 and 1,670.92 is: 2,506.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.61 : 8,429.72 = 1,670.92 : x
  2. Step 2: Convert to fraction form
    5,620.61/8,429.72 = 1,670.92/x
  3. Step 3: Cross multiply
    5,620.61x = 8,429.72 × 1,670.92
  4. Step 4: Simplify right side
    5,620.61x = 14,085,358.31
  5. Step 5: Solve for x
    x = 14,085,358.31/5,620.61
  6. Step 6: Final answer
    x = 2,506.02

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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.