Home / 7,678.10-10,595.75-4,320.92

Finding the Fourth Proportional to 7,678.10, 10,595.75 and 4,320.92

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Solution

The fourth proportional to 7,678.10, 10,595.75 and 4,320.92 is: 5,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.10 : 10,595.75 = 4,320.92 : x
  2. Step 2: Convert to fraction form
    7,678.10/10,595.75 = 4,320.92/x
  3. Step 3: Cross multiply
    7,678.10x = 10,595.75 × 4,320.92
  4. Step 4: Simplify right side
    7,678.10x = 45,783,388.09
  5. Step 5: Solve for x
    x = 45,783,388.09/7,678.10
  6. Step 6: Final answer
    x = 5,962.85

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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.