Home / 5,475.21-7,555.79-2,957.32

Finding the Fourth Proportional to 5,475.21, 7,555.79 and 2,957.32

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Solution

The fourth proportional to 5,475.21, 7,555.79 and 2,957.32 is: 4,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.21 : 7,555.79 = 2,957.32 : x
  2. Step 2: Convert to fraction form
    5,475.21/7,555.79 = 2,957.32/x
  3. Step 3: Cross multiply
    5,475.21x = 7,555.79 × 2,957.32
  4. Step 4: Simplify right side
    5,475.21x = 22,344,874.10
  5. Step 5: Solve for x
    x = 22,344,874.10/5,475.21
  6. Step 6: Final answer
    x = 4,081.10

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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.