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Finding the Fourth Proportional to 3,345.99, 5,026.79 and 2,878.91

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Solution

The fourth proportional to 3,345.99, 5,026.79 and 2,878.91 is: 4,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.99 : 5,026.79 = 2,878.91 : x
  2. Step 2: Convert to fraction form
    3,345.99/5,026.79 = 2,878.91/x
  3. Step 3: Cross multiply
    3,345.99x = 5,026.79 × 2,878.91
  4. Step 4: Simplify right side
    3,345.99x = 14,471,636.47
  5. Step 5: Solve for x
    x = 14,471,636.47/3,345.99
  6. Step 6: Final answer
    x = 4,325.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.