Home / 4,457.21-6,681.71-2,118.32

Finding the Fourth Proportional to 4,457.21, 6,681.71 and 2,118.32

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Solution

The fourth proportional to 4,457.21, 6,681.71 and 2,118.32 is: 3,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.21 : 6,681.71 = 2,118.32 : x
  2. Step 2: Convert to fraction form
    4,457.21/6,681.71 = 2,118.32/x
  3. Step 3: Cross multiply
    4,457.21x = 6,681.71 × 2,118.32
  4. Step 4: Simplify right side
    4,457.21x = 14,153,989.34
  5. Step 5: Solve for x
    x = 14,153,989.34/4,457.21
  6. Step 6: Final answer
    x = 3,175.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.