Home / 2,289.36-3,158.16-1,503.20

Finding the Fourth Proportional to 2,289.36, 3,158.16 and 1,503.20

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Solution

The fourth proportional to 2,289.36, 3,158.16 and 1,503.20 is: 2,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.36 : 3,158.16 = 1,503.20 : x
  2. Step 2: Convert to fraction form
    2,289.36/3,158.16 = 1,503.20/x
  3. Step 3: Cross multiply
    2,289.36x = 3,158.16 × 1,503.20
  4. Step 4: Simplify right side
    2,289.36x = 4,747,346.11
  5. Step 5: Solve for x
    x = 4,747,346.11/2,289.36
  6. Step 6: Final answer
    x = 2,073.66

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1.5x scale

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.