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Finding the Fourth Proportional to 2,991.98, 4,486.95 and 1,510.63

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Solution

The fourth proportional to 2,991.98, 4,486.95 and 1,510.63 is: 2,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.98 : 4,486.95 = 1,510.63 : x
  2. Step 2: Convert to fraction form
    2,991.98/4,486.95 = 1,510.63/x
  3. Step 3: Cross multiply
    2,991.98x = 4,486.95 × 1,510.63
  4. Step 4: Simplify right side
    2,991.98x = 6,778,110.06
  5. Step 5: Solve for x
    x = 6,778,110.06/2,991.98
  6. Step 6: Final answer
    x = 2,265.42

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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.