Home / 4,378.74-6,558.39-2,429.70

Finding the Fourth Proportional to 4,378.74, 6,558.39 and 2,429.70

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Solution

The fourth proportional to 4,378.74, 6,558.39 and 2,429.70 is: 3,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.74 : 6,558.39 = 2,429.70 : x
  2. Step 2: Convert to fraction form
    4,378.74/6,558.39 = 2,429.70/x
  3. Step 3: Cross multiply
    4,378.74x = 6,558.39 × 2,429.70
  4. Step 4: Simplify right side
    4,378.74x = 15,934,920.18
  5. Step 5: Solve for x
    x = 15,934,920.18/4,378.74
  6. Step 6: Final answer
    x = 3,639.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.