Home / 5,210.69-7,191.05-3,087.88

Finding the Fourth Proportional to 5,210.69, 7,191.05 and 3,087.88

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Solution

The fourth proportional to 5,210.69, 7,191.05 and 3,087.88 is: 4,261.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.69 : 7,191.05 = 3,087.88 : x
  2. Step 2: Convert to fraction form
    5,210.69/7,191.05 = 3,087.88/x
  3. Step 3: Cross multiply
    5,210.69x = 7,191.05 × 3,087.88
  4. Step 4: Simplify right side
    5,210.69x = 22,205,066.06
  5. Step 5: Solve for x
    x = 22,205,066.06/5,210.69
  6. Step 6: Final answer
    x = 4,261.45

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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.