Home / 4,457.74-6,688.14-1,685.21

Finding the Fourth Proportional to 4,457.74, 6,688.14 and 1,685.21

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Solution

The fourth proportional to 4,457.74, 6,688.14 and 1,685.21 is: 2,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.74 : 6,688.14 = 1,685.21 : x
  2. Step 2: Convert to fraction form
    4,457.74/6,688.14 = 1,685.21/x
  3. Step 3: Cross multiply
    4,457.74x = 6,688.14 × 1,685.21
  4. Step 4: Simplify right side
    4,457.74x = 11,270,911.98
  5. Step 5: Solve for x
    x = 11,270,911.98/4,457.74
  6. Step 6: Final answer
    x = 2,528.39

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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.