Home / 4,989.68-6,888.66-3,313.40

Finding the Fourth Proportional to 4,989.68, 6,888.66 and 3,313.40

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Solution

The fourth proportional to 4,989.68, 6,888.66 and 3,313.40 is: 4,574.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.68 : 6,888.66 = 3,313.40 : x
  2. Step 2: Convert to fraction form
    4,989.68/6,888.66 = 3,313.40/x
  3. Step 3: Cross multiply
    4,989.68x = 6,888.66 × 3,313.40
  4. Step 4: Simplify right side
    4,989.68x = 22,824,886.04
  5. Step 5: Solve for x
    x = 22,824,886.04/4,989.68
  6. Step 6: Final answer
    x = 4,574.42

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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.