Home / 5,707.02-7,875.45-3,189.09

Finding the Fourth Proportional to 5,707.02, 7,875.45 and 3,189.09

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Solution

The fourth proportional to 5,707.02, 7,875.45 and 3,189.09 is: 4,400.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.02 : 7,875.45 = 3,189.09 : x
  2. Step 2: Convert to fraction form
    5,707.02/7,875.45 = 3,189.09/x
  3. Step 3: Cross multiply
    5,707.02x = 7,875.45 × 3,189.09
  4. Step 4: Simplify right side
    5,707.02x = 25,115,518.84
  5. Step 5: Solve for x
    x = 25,115,518.84/5,707.02
  6. Step 6: Final answer
    x = 4,400.81

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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.