Home / 4,808.93-7,212.48-1,688.20

Finding the Fourth Proportional to 4,808.93, 7,212.48 and 1,688.20

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Solution

The fourth proportional to 4,808.93, 7,212.48 and 1,688.20 is: 2,531.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.93 : 7,212.48 = 1,688.20 : x
  2. Step 2: Convert to fraction form
    4,808.93/7,212.48 = 1,688.20/x
  3. Step 3: Cross multiply
    4,808.93x = 7,212.48 × 1,688.20
  4. Step 4: Simplify right side
    4,808.93x = 12,176,084.37
  5. Step 5: Solve for x
    x = 12,176,084.37/4,808.93
  6. Step 6: Final answer
    x = 2,531.98

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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.