Home / 1,243.04-1,872.98-1,031.36

Finding the Fourth Proportional to 1,243.04, 1,872.98 and 1,031.36

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Solution

The fourth proportional to 1,243.04, 1,872.98 and 1,031.36 is: 1,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.04 : 1,872.98 = 1,031.36 : x
  2. Step 2: Convert to fraction form
    1,243.04/1,872.98 = 1,031.36/x
  3. Step 3: Cross multiply
    1,243.04x = 1,872.98 × 1,031.36
  4. Step 4: Simplify right side
    1,243.04x = 1,931,716.65
  5. Step 5: Solve for x
    x = 1,931,716.65/1,243.04
  6. Step 6: Final answer
    x = 1,554.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.