Home / 4,320.68-6,480.02-1,688.24

Finding the Fourth Proportional to 4,320.68, 6,480.02 and 1,688.24

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Solution

The fourth proportional to 4,320.68, 6,480.02 and 1,688.24 is: 2,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.68 : 6,480.02 = 1,688.24 : x
  2. Step 2: Convert to fraction form
    4,320.68/6,480.02 = 1,688.24/x
  3. Step 3: Cross multiply
    4,320.68x = 6,480.02 × 1,688.24
  4. Step 4: Simplify right side
    4,320.68x = 10,939,828.96
  5. Step 5: Solve for x
    x = 10,939,828.96/4,320.68
  6. Step 6: Final answer
    x = 2,531.97

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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.