Home / 1,425.05-1,966.64-1,075.13

Finding the Fourth Proportional to 1,425.05, 1,966.64 and 1,075.13

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Solution

The fourth proportional to 1,425.05, 1,966.64 and 1,075.13 is: 1,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.05 : 1,966.64 = 1,075.13 : x
  2. Step 2: Convert to fraction form
    1,425.05/1,966.64 = 1,075.13/x
  3. Step 3: Cross multiply
    1,425.05x = 1,966.64 × 1,075.13
  4. Step 4: Simplify right side
    1,425.05x = 2,114,378.45
  5. Step 5: Solve for x
    x = 2,114,378.45/1,425.05
  6. Step 6: Final answer
    x = 1,483.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.