Home / 1,919.49-2,864.27-1,712.64

Finding the Fourth Proportional to 1,919.49, 2,864.27 and 1,712.64

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Solution

The fourth proportional to 1,919.49, 2,864.27 and 1,712.64 is: 2,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.49 : 2,864.27 = 1,712.64 : x
  2. Step 2: Convert to fraction form
    1,919.49/2,864.27 = 1,712.64/x
  3. Step 3: Cross multiply
    1,919.49x = 2,864.27 × 1,712.64
  4. Step 4: Simplify right side
    1,919.49x = 4,905,440.49
  5. Step 5: Solve for x
    x = 4,905,440.49/1,919.49
  6. Step 6: Final answer
    x = 2,555.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.