Home / 3,267.90-4,903.88-1,320.12

Finding the Fourth Proportional to 3,267.90, 4,903.88 and 1,320.12

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Solution

The fourth proportional to 3,267.90, 4,903.88 and 1,320.12 is: 1,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,267.90 : 4,903.88 = 1,320.12 : x
  2. Step 2: Convert to fraction form
    3,267.90/4,903.88 = 1,320.12/x
  3. Step 3: Cross multiply
    3,267.90x = 4,903.88 × 1,320.12
  4. Step 4: Simplify right side
    3,267.90x = 6,473,703.47
  5. Step 5: Solve for x
    x = 6,473,703.47/3,267.90
  6. Step 6: Final answer
    x = 1,981.00

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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.