Home / 7,087.80-10,630.95-2,157.49

Finding the Fourth Proportional to 7,087.80, 10,630.95 and 2,157.49

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Solution

The fourth proportional to 7,087.80, 10,630.95 and 2,157.49 is: 3,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.80 : 10,630.95 = 2,157.49 : x
  2. Step 2: Convert to fraction form
    7,087.80/10,630.95 = 2,157.49/x
  3. Step 3: Cross multiply
    7,087.80x = 10,630.95 × 2,157.49
  4. Step 4: Simplify right side
    7,087.80x = 22,936,113.71
  5. Step 5: Solve for x
    x = 22,936,113.71/7,087.80
  6. Step 6: Final answer
    x = 3,236.00

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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.