Home / 4,320.53-6,480.63-1,398.75

Finding the Fourth Proportional to 4,320.53, 6,480.63 and 1,398.75

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Solution

The fourth proportional to 4,320.53, 6,480.63 and 1,398.75 is: 2,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.53 : 6,480.63 = 1,398.75 : x
  2. Step 2: Convert to fraction form
    4,320.53/6,480.63 = 1,398.75/x
  3. Step 3: Cross multiply
    4,320.53x = 6,480.63 × 1,398.75
  4. Step 4: Simplify right side
    4,320.53x = 9,064,781.21
  5. Step 5: Solve for x
    x = 9,064,781.21/4,320.53
  6. Step 6: Final answer
    x = 2,098.07

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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.