Home / 6,415.10-9,630.45-4,075.10

Finding the Fourth Proportional to 6,415.10, 9,630.45 and 4,075.10

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Solution

The fourth proportional to 6,415.10, 9,630.45 and 4,075.10 is: 6,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.10 : 9,630.45 = 4,075.10 : x
  2. Step 2: Convert to fraction form
    6,415.10/9,630.45 = 4,075.10/x
  3. Step 3: Cross multiply
    6,415.10x = 9,630.45 × 4,075.10
  4. Step 4: Simplify right side
    6,415.10x = 39,245,046.80
  5. Step 5: Solve for x
    x = 39,245,046.80/6,415.10
  6. Step 6: Final answer
    x = 6,117.60

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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.