Home / 5,630.76-8,447.70-2,345.40

Finding the Fourth Proportional to 5,630.76, 8,447.70 and 2,345.40

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Solution

The fourth proportional to 5,630.76, 8,447.70 and 2,345.40 is: 3,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.76 : 8,447.70 = 2,345.40 : x
  2. Step 2: Convert to fraction form
    5,630.76/8,447.70 = 2,345.40/x
  3. Step 3: Cross multiply
    5,630.76x = 8,447.70 × 2,345.40
  4. Step 4: Simplify right side
    5,630.76x = 19,813,235.58
  5. Step 5: Solve for x
    x = 19,813,235.58/5,630.76
  6. Step 6: Final answer
    x = 3,518.75

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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.