Home / 1,507.10-2,075.44-1,226.43

Finding the Fourth Proportional to 1,507.10, 2,075.44 and 1,226.43

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Solution

The fourth proportional to 1,507.10, 2,075.44 and 1,226.43 is: 1,688.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507.10 : 2,075.44 = 1,226.43 : x
  2. Step 2: Convert to fraction form
    1,507.10/2,075.44 = 1,226.43/x
  3. Step 3: Cross multiply
    1,507.10x = 2,075.44 × 1,226.43
  4. Step 4: Simplify right side
    1,507.10x = 2,545,381.88
  5. Step 5: Solve for x
    x = 2,545,381.88/1,507.10
  6. Step 6: Final answer
    x = 1,688.93

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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.