Home / 3,191.22-4,402.53-1,948.50

Finding the Fourth Proportional to 3,191.22, 4,402.53 and 1,948.50

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Solution

The fourth proportional to 3,191.22, 4,402.53 and 1,948.50 is: 2,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.22 : 4,402.53 = 1,948.50 : x
  2. Step 2: Convert to fraction form
    3,191.22/4,402.53 = 1,948.50/x
  3. Step 3: Cross multiply
    3,191.22x = 4,402.53 × 1,948.50
  4. Step 4: Simplify right side
    3,191.22x = 8,578,329.71
  5. Step 5: Solve for x
    x = 8,578,329.71/3,191.22
  6. Step 6: Final answer
    x = 2,688.10

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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.