Home / 5,345.20-8,017.80-1,647.10

Finding the Fourth Proportional to 5,345.20, 8,017.80 and 1,647.10

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Solution

The fourth proportional to 5,345.20, 8,017.80 and 1,647.10 is: 2,470.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.20 : 8,017.80 = 1,647.10 : x
  2. Step 2: Convert to fraction form
    5,345.20/8,017.80 = 1,647.10/x
  3. Step 3: Cross multiply
    5,345.20x = 8,017.80 × 1,647.10
  4. Step 4: Simplify right side
    5,345.20x = 13,206,118.38
  5. Step 5: Solve for x
    x = 13,206,118.38/5,345.20
  6. Step 6: Final answer
    x = 2,470.65

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Similar ratio
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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.