Home / 4,678.30-6,456.53-2,688.94

Finding the Fourth Proportional to 4,678.30, 6,456.53 and 2,688.94

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Solution

The fourth proportional to 4,678.30, 6,456.53 and 2,688.94 is: 3,711.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.30 : 6,456.53 = 2,688.94 : x
  2. Step 2: Convert to fraction form
    4,678.30/6,456.53 = 2,688.94/x
  3. Step 3: Cross multiply
    4,678.30x = 6,456.53 × 2,688.94
  4. Step 4: Simplify right side
    4,678.30x = 17,361,176.05
  5. Step 5: Solve for x
    x = 17,361,176.05/4,678.30
  6. Step 6: Final answer
    x = 3,711.00

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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.