Home / 6,429.24-9,643.30-1,812.60

Finding the Fourth Proportional to 6,429.24, 9,643.30 and 1,812.60

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Solution

The fourth proportional to 6,429.24, 9,643.30 and 1,812.60 is: 2,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.24 : 9,643.30 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    6,429.24/9,643.30 = 1,812.60/x
  3. Step 3: Cross multiply
    6,429.24x = 9,643.30 × 1,812.60
  4. Step 4: Simplify right side
    6,429.24x = 17,479,445.58
  5. Step 5: Solve for x
    x = 17,479,445.58/6,429.24
  6. Step 6: Final answer
    x = 2,718.74

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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.