Home / 4,981.89-6,875.04-2,857.50

Finding the Fourth Proportional to 4,981.89, 6,875.04 and 2,857.50

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Solution

The fourth proportional to 4,981.89, 6,875.04 and 2,857.50 is: 3,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.89 : 6,875.04 = 2,857.50 : x
  2. Step 2: Convert to fraction form
    4,981.89/6,875.04 = 2,857.50/x
  3. Step 3: Cross multiply
    4,981.89x = 6,875.04 × 2,857.50
  4. Step 4: Simplify right side
    4,981.89x = 19,645,426.80
  5. Step 5: Solve for x
    x = 19,645,426.80/4,981.89
  6. Step 6: Final answer
    x = 3,943.37

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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.