Home / 3,312.30-4,570.82-1,986.74

Finding the Fourth Proportional to 3,312.30, 4,570.82 and 1,986.74

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Solution

The fourth proportional to 3,312.30, 4,570.82 and 1,986.74 is: 2,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.30 : 4,570.82 = 1,986.74 : x
  2. Step 2: Convert to fraction form
    3,312.30/4,570.82 = 1,986.74/x
  3. Step 3: Cross multiply
    3,312.30x = 4,570.82 × 1,986.74
  4. Step 4: Simplify right side
    3,312.30x = 9,081,030.93
  5. Step 5: Solve for x
    x = 9,081,030.93/3,312.30
  6. Step 6: Final answer
    x = 2,741.61

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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.