Home / 6,457.84-8,911.88-3,663.12

Finding the Fourth Proportional to 6,457.84, 8,911.88 and 3,663.12

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Solution

The fourth proportional to 6,457.84, 8,911.88 and 3,663.12 is: 5,055.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,457.84 : 8,911.88 = 3,663.12 : x
  2. Step 2: Convert to fraction form
    6,457.84/8,911.88 = 3,663.12/x
  3. Step 3: Cross multiply
    6,457.84x = 8,911.88 × 3,663.12
  4. Step 4: Simplify right side
    6,457.84x = 32,645,285.87
  5. Step 5: Solve for x
    x = 32,645,285.87/6,457.84
  6. Step 6: Final answer
    x = 5,055.14

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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.