Home / 4,670.25-7,005.78-1,207.50

Finding the Fourth Proportional to 4,670.25, 7,005.78 and 1,207.50

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Solution

The fourth proportional to 4,670.25, 7,005.78 and 1,207.50 is: 1,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,670.25 : 7,005.78 = 1,207.50 : x
  2. Step 2: Convert to fraction form
    4,670.25/7,005.78 = 1,207.50/x
  3. Step 3: Cross multiply
    4,670.25x = 7,005.78 × 1,207.50
  4. Step 4: Simplify right side
    4,670.25x = 8,459,479.35
  5. Step 5: Solve for x
    x = 8,459,479.35/4,670.25
  6. Step 6: Final answer
    x = 1,811.35

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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.