Home / 4,319.95-6,480.51-1,398.64

Finding the Fourth Proportional to 4,319.95, 6,480.51 and 1,398.64

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Solution

The fourth proportional to 4,319.95, 6,480.51 and 1,398.64 is: 2,098.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.95 : 6,480.51 = 1,398.64 : x
  2. Step 2: Convert to fraction form
    4,319.95/6,480.51 = 1,398.64/x
  3. Step 3: Cross multiply
    4,319.95x = 6,480.51 × 1,398.64
  4. Step 4: Simplify right side
    4,319.95x = 9,063,900.51
  5. Step 5: Solve for x
    x = 9,063,900.51/4,319.95
  6. Step 6: Final answer
    x = 2,098.15

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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.