Home / 1,434.04-2,150.71-913.26

Finding the Fourth Proportional to 1,434.04, 2,150.71 and 913.26

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Solution

The fourth proportional to 1,434.04, 2,150.71 and 913.26 is: 1,369.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.04 : 2,150.71 = 913.26 : x
  2. Step 2: Convert to fraction form
    1,434.04/2,150.71 = 913.26/x
  3. Step 3: Cross multiply
    1,434.04x = 2,150.71 × 913.26
  4. Step 4: Simplify right side
    1,434.04x = 1,964,157.41
  5. Step 5: Solve for x
    x = 1,964,157.41/1,434.04
  6. Step 6: Final answer
    x = 1,369.67

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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.