Home / 1,385.10-1,902.08-1,163.67

Finding the Fourth Proportional to 1,385.10, 1,902.08 and 1,163.67

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Solution

The fourth proportional to 1,385.10, 1,902.08 and 1,163.67 is: 1,598.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.10 : 1,902.08 = 1,163.67 : x
  2. Step 2: Convert to fraction form
    1,385.10/1,902.08 = 1,163.67/x
  3. Step 3: Cross multiply
    1,385.10x = 1,902.08 × 1,163.67
  4. Step 4: Simplify right side
    1,385.10x = 2,213,389.21
  5. Step 5: Solve for x
    x = 2,213,389.21/1,385.10
  6. Step 6: Final answer
    x = 1,598.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.