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Finding the Fourth Proportional to 7,075.91, 10,613.83 and 1,810.91

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Solution

The fourth proportional to 7,075.91, 10,613.83 and 1,810.91 is: 2,716.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.91 : 10,613.83 = 1,810.91 : x
  2. Step 2: Convert to fraction form
    7,075.91/10,613.83 = 1,810.91/x
  3. Step 3: Cross multiply
    7,075.91x = 10,613.83 × 1,810.91
  4. Step 4: Simplify right side
    7,075.91x = 19,220,712.89
  5. Step 5: Solve for x
    x = 19,220,712.89/7,075.91
  6. Step 6: Final answer
    x = 2,716.36

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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.