Home / 7,664.81-10,579.73-4,478.99

Finding the Fourth Proportional to 7,664.81, 10,579.73 and 4,478.99

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Solution

The fourth proportional to 7,664.81, 10,579.73 and 4,478.99 is: 6,182.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.81 : 10,579.73 = 4,478.99 : x
  2. Step 2: Convert to fraction form
    7,664.81/10,579.73 = 4,478.99/x
  3. Step 3: Cross multiply
    7,664.81x = 10,579.73 × 4,478.99
  4. Step 4: Simplify right side
    7,664.81x = 47,386,429.58
  5. Step 5: Solve for x
    x = 47,386,429.58/7,664.81
  6. Step 6: Final answer
    x = 6,182.34

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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.