Home / 5,210.78-7,190.88-2,852.93

Finding the Fourth Proportional to 5,210.78, 7,190.88 and 2,852.93

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Solution

The fourth proportional to 5,210.78, 7,190.88 and 2,852.93 is: 3,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.78 : 7,190.88 = 2,852.93 : x
  2. Step 2: Convert to fraction form
    5,210.78/7,190.88 = 2,852.93/x
  3. Step 3: Cross multiply
    5,210.78x = 7,190.88 × 2,852.93
  4. Step 4: Simplify right side
    5,210.78x = 20,515,077.28
  5. Step 5: Solve for x
    x = 20,515,077.28/5,210.78
  6. Step 6: Final answer
    x = 3,937.05

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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.