Home / 6,429.02-8,869.41-4,190.07

Finding the Fourth Proportional to 6,429.02, 8,869.41 and 4,190.07

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Solution

The fourth proportional to 6,429.02, 8,869.41 and 4,190.07 is: 5,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.02 : 8,869.41 = 4,190.07 : x
  2. Step 2: Convert to fraction form
    6,429.02/8,869.41 = 4,190.07/x
  3. Step 3: Cross multiply
    6,429.02x = 8,869.41 × 4,190.07
  4. Step 4: Simplify right side
    6,429.02x = 37,163,448.76
  5. Step 5: Solve for x
    x = 37,163,448.76/6,429.02
  6. Step 6: Final answer
    x = 5,780.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.