Home / 2,928.27-4,038.60-2,088.70

Finding the Fourth Proportional to 2,928.27, 4,038.60 and 2,088.70

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Solution

The fourth proportional to 2,928.27, 4,038.60 and 2,088.70 is: 2,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.27 : 4,038.60 = 2,088.70 : x
  2. Step 2: Convert to fraction form
    2,928.27/4,038.60 = 2,088.70/x
  3. Step 3: Cross multiply
    2,928.27x = 4,038.60 × 2,088.70
  4. Step 4: Simplify right side
    2,928.27x = 8,435,423.82
  5. Step 5: Solve for x
    x = 8,435,423.82/2,928.27
  6. Step 6: Final answer
    x = 2,880.69

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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.