Home / 4,678.34-6,456.01-2,688.85

Finding the Fourth Proportional to 4,678.34, 6,456.01 and 2,688.85

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Solution

The fourth proportional to 4,678.34, 6,456.01 and 2,688.85 is: 3,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678.34 : 6,456.01 = 2,688.85 : x
  2. Step 2: Convert to fraction form
    4,678.34/6,456.01 = 2,688.85/x
  3. Step 3: Cross multiply
    4,678.34x = 6,456.01 × 2,688.85
  4. Step 4: Simplify right side
    4,678.34x = 17,359,242.49
  5. Step 5: Solve for x
    x = 17,359,242.49/4,678.34
  6. Step 6: Final answer
    x = 3,710.56

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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.