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Finding the Fourth Proportional to 3,075.08, 4,612.63 and 995.40

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Solution

The fourth proportional to 3,075.08, 4,612.63 and 995.40 is: 1,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.08 : 4,612.63 = 995.40 : x
  2. Step 2: Convert to fraction form
    3,075.08/4,612.63 = 995.40/x
  3. Step 3: Cross multiply
    3,075.08x = 4,612.63 × 995.40
  4. Step 4: Simplify right side
    3,075.08x = 4,591,411.90
  5. Step 5: Solve for x
    x = 4,591,411.90/3,075.08
  6. Step 6: Final answer
    x = 1,493.10

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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.