Home / 2,983.68-4,117.47-1,788.89

Finding the Fourth Proportional to 2,983.68, 4,117.47 and 1,788.89

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Solution

The fourth proportional to 2,983.68, 4,117.47 and 1,788.89 is: 2,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.68 : 4,117.47 = 1,788.89 : x
  2. Step 2: Convert to fraction form
    2,983.68/4,117.47 = 1,788.89/x
  3. Step 3: Cross multiply
    2,983.68x = 4,117.47 × 1,788.89
  4. Step 4: Simplify right side
    2,983.68x = 7,365,680.32
  5. Step 5: Solve for x
    x = 7,365,680.32/2,983.68
  6. Step 6: Final answer
    x = 2,468.66

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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.