Home / 1,864.61-2,783.35-1,729.49

Finding the Fourth Proportional to 1,864.61, 2,783.35 and 1,729.49

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Solution

The fourth proportional to 1,864.61, 2,783.35 and 1,729.49 is: 2,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.61 : 2,783.35 = 1,729.49 : x
  2. Step 2: Convert to fraction form
    1,864.61/2,783.35 = 1,729.49/x
  3. Step 3: Cross multiply
    1,864.61x = 2,783.35 × 1,729.49
  4. Step 4: Simplify right side
    1,864.61x = 4,813,767.34
  5. Step 5: Solve for x
    x = 4,813,767.34/1,864.61
  6. Step 6: Final answer
    x = 2,581.65

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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.