Home / 2,875.27-4,307.10-1,994.80

Finding the Fourth Proportional to 2,875.27, 4,307.10 and 1,994.80

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Solution

The fourth proportional to 2,875.27, 4,307.10 and 1,994.80 is: 2,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.27 : 4,307.10 = 1,994.80 : x
  2. Step 2: Convert to fraction form
    2,875.27/4,307.10 = 1,994.80/x
  3. Step 3: Cross multiply
    2,875.27x = 4,307.10 × 1,994.80
  4. Step 4: Simplify right side
    2,875.27x = 8,591,803.08
  5. Step 5: Solve for x
    x = 8,591,803.08/2,875.27
  6. Step 6: Final answer
    x = 2,988.17

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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.