Home / 5,406.57-7,460.51-3,991.01

Finding the Fourth Proportional to 5,406.57, 7,460.51 and 3,991.01

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Solution

The fourth proportional to 5,406.57, 7,460.51 and 3,991.01 is: 5,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.57 : 7,460.51 = 3,991.01 : x
  2. Step 2: Convert to fraction form
    5,406.57/7,460.51 = 3,991.01/x
  3. Step 3: Cross multiply
    5,406.57x = 7,460.51 × 3,991.01
  4. Step 4: Simplify right side
    5,406.57x = 29,774,970.02
  5. Step 5: Solve for x
    x = 29,774,970.02/5,406.57
  6. Step 6: Final answer
    x = 5,507.18

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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.