Home / 3,316.68-4,575.48-1,988.07

Finding the Fourth Proportional to 3,316.68, 4,575.48 and 1,988.07

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Solution

The fourth proportional to 3,316.68, 4,575.48 and 1,988.07 is: 2,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.68 : 4,575.48 = 1,988.07 : x
  2. Step 2: Convert to fraction form
    3,316.68/4,575.48 = 1,988.07/x
  3. Step 3: Cross multiply
    3,316.68x = 4,575.48 × 1,988.07
  4. Step 4: Simplify right side
    3,316.68x = 9,096,374.52
  5. Step 5: Solve for x
    x = 9,096,374.52/3,316.68
  6. Step 6: Final answer
    x = 2,742.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.