Home / 4,320.14-6,480.20-1,398.67

Finding the Fourth Proportional to 4,320.14, 6,480.20 and 1,398.67

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Solution

The fourth proportional to 4,320.14, 6,480.20 and 1,398.67 is: 2,098.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.14 : 6,480.20 = 1,398.67 : x
  2. Step 2: Convert to fraction form
    4,320.14/6,480.20 = 1,398.67/x
  3. Step 3: Cross multiply
    4,320.14x = 6,480.20 × 1,398.67
  4. Step 4: Simplify right side
    4,320.14x = 9,063,648.63
  5. Step 5: Solve for x
    x = 9,063,648.63/4,320.14
  6. Step 6: Final answer
    x = 2,098.00

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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.