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Finding the Fourth Proportional to 4,998.48, 7,498.54 and 1,878.74

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Solution

The fourth proportional to 4,998.48, 7,498.54 and 1,878.74 is: 2,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.48 : 7,498.54 = 1,878.74 : x
  2. Step 2: Convert to fraction form
    4,998.48/7,498.54 = 1,878.74/x
  3. Step 3: Cross multiply
    4,998.48x = 7,498.54 × 1,878.74
  4. Step 4: Simplify right side
    4,998.48x = 14,087,807.04
  5. Step 5: Solve for x
    x = 14,087,807.04/4,998.48
  6. Step 6: Final answer
    x = 2,818.42

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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.