Home / 2,385.28-3,574.03-1,213.67

Finding the Fourth Proportional to 2,385.28, 3,574.03 and 1,213.67

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Solution

The fourth proportional to 2,385.28, 3,574.03 and 1,213.67 is: 1,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.28 : 3,574.03 = 1,213.67 : x
  2. Step 2: Convert to fraction form
    2,385.28/3,574.03 = 1,213.67/x
  3. Step 3: Cross multiply
    2,385.28x = 3,574.03 × 1,213.67
  4. Step 4: Simplify right side
    2,385.28x = 4,337,682.95
  5. Step 5: Solve for x
    x = 4,337,682.95/2,385.28
  6. Step 6: Final answer
    x = 1,818.52

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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.