Home / 3,255.32-4,492.33-1,911.74

Finding the Fourth Proportional to 3,255.32, 4,492.33 and 1,911.74

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Solution

The fourth proportional to 3,255.32, 4,492.33 and 1,911.74 is: 2,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,255.32 : 4,492.33 = 1,911.74 : x
  2. Step 2: Convert to fraction form
    3,255.32/4,492.33 = 1,911.74/x
  3. Step 3: Cross multiply
    3,255.32x = 4,492.33 × 1,911.74
  4. Step 4: Simplify right side
    3,255.32x = 8,588,139.71
  5. Step 5: Solve for x
    x = 8,588,139.71/3,255.32
  6. Step 6: Final answer
    x = 2,638.18

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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.