Home / 1,440.09-2,160.12-953.03

Finding the Fourth Proportional to 1,440.09, 2,160.12 and 953.03

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Solution

The fourth proportional to 1,440.09, 2,160.12 and 953.03 is: 1,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.09 : 2,160.12 = 953.03 : x
  2. Step 2: Convert to fraction form
    1,440.09/2,160.12 = 953.03/x
  3. Step 3: Cross multiply
    1,440.09x = 2,160.12 × 953.03
  4. Step 4: Simplify right side
    1,440.09x = 2,058,648.36
  5. Step 5: Solve for x
    x = 2,058,648.36/1,440.09
  6. Step 6: Final answer
    x = 1,429.53

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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.