Home / 5,636.10-7,777.74-3,118.32

Finding the Fourth Proportional to 5,636.10, 7,777.74 and 3,118.32

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Solution

The fourth proportional to 5,636.10, 7,777.74 and 3,118.32 is: 4,303.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.10 : 7,777.74 = 3,118.32 : x
  2. Step 2: Convert to fraction form
    5,636.10/7,777.74 = 3,118.32/x
  3. Step 3: Cross multiply
    5,636.10x = 7,777.74 × 3,118.32
  4. Step 4: Simplify right side
    5,636.10x = 24,253,482.20
  5. Step 5: Solve for x
    x = 24,253,482.20/5,636.10
  6. Step 6: Final answer
    x = 4,303.24

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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.