Home / 3,307.88-4,563.28-1,981.32

Finding the Fourth Proportional to 3,307.88, 4,563.28 and 1,981.32

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Solution

The fourth proportional to 3,307.88, 4,563.28 and 1,981.32 is: 2,733.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.88 : 4,563.28 = 1,981.32 : x
  2. Step 2: Convert to fraction form
    3,307.88/4,563.28 = 1,981.32/x
  3. Step 3: Cross multiply
    3,307.88x = 4,563.28 × 1,981.32
  4. Step 4: Simplify right side
    3,307.88x = 9,041,312.98
  5. Step 5: Solve for x
    x = 9,041,312.98/3,307.88
  6. Step 6: Final answer
    x = 2,733.27

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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.