Home / 2,385.36-3,289.32-1,545.12

Finding the Fourth Proportional to 2,385.36, 3,289.32 and 1,545.12

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Solution

The fourth proportional to 2,385.36, 3,289.32 and 1,545.12 is: 2,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.36 : 3,289.32 = 1,545.12 : x
  2. Step 2: Convert to fraction form
    2,385.36/3,289.32 = 1,545.12/x
  3. Step 3: Cross multiply
    2,385.36x = 3,289.32 × 1,545.12
  4. Step 4: Simplify right side
    2,385.36x = 5,082,394.12
  5. Step 5: Solve for x
    x = 5,082,394.12/2,385.36
  6. Step 6: Final answer
    x = 2,130.66

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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.