Home / 1,440.16-2,160.23-953.10

Finding the Fourth Proportional to 1,440.16, 2,160.23 and 953.10

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Solution

The fourth proportional to 1,440.16, 2,160.23 and 953.10 is: 1,429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.16 : 2,160.23 = 953.10 : x
  2. Step 2: Convert to fraction form
    1,440.16/2,160.23 = 953.10/x
  3. Step 3: Cross multiply
    1,440.16x = 2,160.23 × 953.10
  4. Step 4: Simplify right side
    1,440.16x = 2,058,909.49
  5. Step 5: Solve for x
    x = 2,058,909.49/1,440.16
  6. Step 6: Final answer
    x = 1,429.64

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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.