Home / 2,807.52-3,872.57-1,730.40

Finding the Fourth Proportional to 2,807.52, 3,872.57 and 1,730.40

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Solution

The fourth proportional to 2,807.52, 3,872.57 and 1,730.40 is: 2,386.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.52 : 3,872.57 = 1,730.40 : x
  2. Step 2: Convert to fraction form
    2,807.52/3,872.57 = 1,730.40/x
  3. Step 3: Cross multiply
    2,807.52x = 3,872.57 × 1,730.40
  4. Step 4: Simplify right side
    2,807.52x = 6,701,086.48
  5. Step 5: Solve for x
    x = 6,701,086.48/2,807.52
  6. Step 6: Final answer
    x = 2,386.83

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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.